5th Grade Math Activity Packet.pdf - Google Drive

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Mar 23, 2016 - Page 2 of 108. Name. 1. CC.5.NF.7b Jose solved the. equation below. 9 ÷ = 54. Which of the following can
MATH ACTIVITY PACKET

Cocalico School District Grade 5

3/23/16

Name 1.

CC.5.NF.7b Jose solved the equation below. 9 ÷

=

4.

54

Which of the following can Jose use to check his work? 54 X

=

27

s 54 x

=

18

A

C

54 X

5.

z CC.5.NBT.5 At summer camp, the kids performed a play 6 times over the last two days. if the camp theater holds 35 people, which is the maximum number of people who watched the play?

3.

240

B

210

C

180

D

41

B

20

C

26

D30

9

D54X6

A

CC.5.NDT.6 A clothing store at the mall receives a shipment of 312 sweaters. The shipment comes in 12 boxes with the same number of sweaters in each box. How many sweaters are there in each box? A16

CC.5.MD.5b The dimensions of a cube are shown below.

9 feet

Which is the volume of this cube? A 81 square feet 279 square feet C 81 cubic feet B

D 6.

CC.S.NF.4b Mary wants to find the area of the rectangle below.

Add 3: 3, 6, 9,

yard

What are the first four ordered pairs formed from corresponding terms of the two patterns?

How many unit squares with side length yard would Mary be able to use to tile the rectangle?

0 Haupton MrIflTh HarOrnt PubIIWrg Coirpuriy

CC.5.OA.3 Use the two patterns below. Add 5: 5, 10, 15,

yard

aenchmark Test A

279 cubic feet

1

Getting Ready for PARCC

CC.5.MD.3a How must unit cubes be stacked when used to measure volume?

7.

CC.5.MD.1 Nene buys a new bowling ball that weighs 10 pounds 13 ounces at a sporting goods store. What is the total weight of the bowling ball in ounces?

10.

.

A .

.

a 163 ounces

a. CC.5.NF.1 Faiyez wrote the problem below. 4j

173 ounces

1

ii.

Which is the difference?

C

113 ounces

0

103 ounces

CC.5.NBT.3a What is the place value of the underlined digit in 209.631?

A3 ..

.

.

... ....

B

4

12.

.

c4

(11 —t) x [(15+ t)

41 5 9.

÷

tJ

Which is the value of the expression when t5?

CC.5.G.J What ordered pair is described below? Start at the origin and move 2 spaces to the right and 4 spaces up. A(2,2) B

CC.5.OA.7 The expression below was in the newspaper.

A

24

B

f8

C

1

0

5

(2. 4)

C (4, 2) B

(4,4)

Benchmark Test A C Hoqhtof UIllUr HrotjrE PubliIm CQm.ny

2

Getting Ready for PARC C

Mrim

13.

CC.5.NBI.f Nick volunteers to count visitors at the country fair. Last week he counted 7,408 visitors. Which shows this number written in expanded form? A 7,000 + 400 + 30 2 7,000 + 400 + 8

16.

CC.5.NF.3 The cafeteria made 96 ounces of pudding. They put the pudding into 7-ounce cups. How many of the cups of pudding can the cafeteria fill completely? A

7,000 + 40 + 8 D 70,000 + 400 + 80 C

14.

13 full cups with 5 ounces of pudding left over

a 13 full cups with 6 ounces of pudding left over C

CC.5.MD.4 Which is the votume of the block if each side measures 1 foot?

14 full cups with 5 ounces of pudding left over

o 14 full cups with 6 ounces of pudding left over 17.

15.

A

3 square feet

B

I square foot

C

3 cubic feet

D

7 cubic foot

CC.5.G.2 The coordinate plane shows the distance traveled by a train over the course of $ hours. Distance Covered by Train

CC.5.NF.5b Write an equivalent expression to The expression below. (17 X 93 (17 x 97

0

500

p

400



300

——-

-————

200

——-

-——--—

ao



.-



—p, -

0

-

-

-

1234 Hours

-

-

6

How far did the train travel after 8 hours?

18.

Benchmark Test A Hughln Udrnn H:,towt

binhm (mpry

3

A

300 miles

B

350 miles

C

400 miles

D

450 miles

CC5.NBT.4 Penny divides 1 by 8 and finds that the quotient is 0.125. What is the quotient rounded to the nearest hundredth?

Getthig Ready for PARCC

Name 19. CC.5.NF.6 Which

is the product?

22.

1X2

A

1 20

A

larger

4

B

smaller

C

the same

C2

0

impossible to tell

B

D4 20.

23.

CC.5.OA.2 Which expression shows: Add 99 and 15, then multiply by 11 99 + 15 X 11 B (99 + 15) x 11 A

CC.5.G.3 All parallelograms have two pairs of parallel sides. If all squares are parallelograms, how many pairs of parallel sides does a square have? A four B

three

ctwo

(99—15) X 11 D f99+11)x15

C

0 24.

21.

CC.5.NF,5a Without calculating the answer, will 5 X be larger or smaller than 5?

CC.5.MD.5c The dimensions of a figure are shown below.

one

CC.5.NBT.7 Seneca combines 133 cups of apple juice with 0.65 cup of grape juice toe make a fruit punch. How much fruit punch will this make?

What is the volume of this figure?

Benchmark Test A 0 Houghlori MLffllfl I1aicti PiHibng Conpny

4

Getting Ready far PARCC

Name

nchma rkWestj 4 _._t_

25.

CC.5.MD.3b Cody says the figure below has a volume of 45 cubic units.

28.

..—..



CC.5.N$T.2 Use the expression below. 13 X 1O Which shows how many zeros will be in the product? A7

Is Cody correct? Which explains how you know?

26.

27.

A

No; Cody is counting some cubes more than once.

B

No; Cody is not counting all of the cubes.

C

Yes; using the volume formula 3 X 5 X 3 = 45.

D

Yes; using the volume formula 3X15=24.

cup

C

1cups

B

1cups

D

%cups

9

C

11

o 13 29.

CC.5.NF.6 Sara fed each of her three dogs cup of dog food for breakfast How much dog food did Sara feed her dogs in all? A

B

CC.5.NF.2 Riley has 10 cups of sugar. She made one dessert that used 11 cups and another that used 2 cups. How much sugar did Riley use in all? A3c11UpS 8

4 cups

C

4

cups

o 5 cups 30.

CC.5.MD.2 This line plot shows how many hours of homework twelve students have.

CC.5.NF.7c At track practice. Pierce wns for 1 hour. If it takes him hour to run a mile, how many miles does Pierce run at practice?

)( 4K

?()( K)C

)(

I I I

I

.,

L

.,I

,

I I

I

I

I

2

Hours of Homework

How many of hours of homework do the students have altogether?

BenthmarkTestA 4) H..ghton UrnJn HatcouaI P.5Iihen Cerpahy

5

Getting Rsady for FARCC

Name

BenchmarkestA -:.-

31. CC.5.NBT.3b The

heights of four pieces of toy furniture are shown in the table below.

34. CC.5.MD.5a

One way to find the volume of the prism below would be to calculate the area of the base first and then multiply by the height

Toy Furniture Height Furniture HeI9hI (In Inches) chair 212 table 2.35 desk 2.8 couch 2Which number sentence correctly compares the heights of two of the pieces of toy furniture? A 2.35> 2.8 B

V

32.

33.

=

(3 units X 4 units) X 5 units

Which shows another way to calculate the volume of the prism?

2.8 2.25 D

A V

=

B V

=

C V =

2.12 ). Explain your answer.

Benchmark Test B 0 Hoibtan MIftihi Hocrt PublkMig Copny

16

f

Which of the following statements is true about the difference?

io

Distance Walked in Miles

A The difference is less than 0. B The difference is less than 1

Which shows the number of miles Maya would have walked each day if she would have walked the same distance every day. A

9miles 30.

B9miles C

c The difference is greater than 0 The difference is greater than 1.

9 miles

CC.5.Nf7c Dino works out for hour every day. If he does 6 different exercises each time he works out, how long does Olno do each exercise?

D8miles ..

Benchmark Test C 0 UouMan M,flli, Hulwu, PbII1hnQ

Conpury

21

Getting Ready for PARCC

Name 31.

CC.5.NBI.3b Which number sentence is true? A

34.

2.72 2.72

32.

C

2.7=2.70

B

2.7=2.72 5

CC.5.NBT.5 Samson wrote the multiplication problem below. 317 X 164

3s. CC.5.G.4 Which of the following figures is NOT a parallelogram?

Which is the product? A 3,487 B

n

A

23,458

B

C 30,000 D51,988

33.

CC.5.Nf.4a Which is another way to writel9X 13±21? A(9X19

0

36. B

CC.5.NF.7a Fran found this expression inhercookbook

c()x13 D

Write a scenario that explains the expression and solve.

19 x 13

()

Sendimark lest C 0 1oghIn MIflth Harn,t PubIttn5 CoIp

22

Getting Ready tar PARCC

Name 37.

CC.5.OA.1 Uta earns $33 each week weeding flower beds in her neighborhood for the summer. She calculates her total weekly expenses for supplies to be $rn. Write an expression to show the amount of money Uta will have after? weeks.

If Uta’s expenses are $4 each week, how much money will Uta have after 16 weeks?

38.

CC.5.NBI.f Pedro’s teacher wrote an expression on the board in expanded form. (5 x 106) + (7 x 1 0) + (2 x 1 0) + (3 x 102) + 8 Pedro’s teacher asks him to name the value of the digits 7, 2, and 3 in the expand ed form expression. His teacher gives him a hint by showing the class the value of the digit 5. (5 x 106)=5 X 1,000,000 5 X 1,000,000 = 5,000,000 Use the example that Pedro’s teacher gave him. What are the value of the digits 7, 2, and 3 in the expanded form expression?

Benchmark Test C 0 I1ouI,n MtftIn Hatc,urI Pubh,hi..g Cmp,,y

23

Getting Ready for PARCC

BenchmarkTes?C

Name 39.

CC.5.G.4 Use the space below to draw a hexagon.

Explain why your drawing is correct.

40.

CC.5.NBT.3b In the deli where Iran worked, a customer ordered twenty-five hundredths of a pound of sliced cheese. When Tran put the cheese slices on the scale, they weighed 0247 lbs. Write twenty-five hundredths as a decimal.

Compare the actual weight of the cheese to the weight the customer ordered by using the symbol for less than (). Explain your answer.

aench mark Test C 0 Hihon UtflIn Haicoir PbIih CQnpzy

2’

Getting Ready for PARCC

Name CC.5.OA.1 Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols. i.

Kyhe wrote the expression below. (9 + k) x 5 What is the value of Kylie’s expression for k = 4? A

65

8

41

4.

Marlisa has 23 seashells in her collection. She collects s more shells during a trip to the beach. Then she doubles the number of seashells in her collection by buying new shells at the souvenir shop. Write an expression to find out how many seashells Marlisa has after her visit to the souvenir shop.

S.

Pedro has 9 coins. His friend John gives him 9 more coins. Pedro decides to share his coins evenly with his two brothers. Which expression shows how many coins each brother will get?

c29 D

2.

28

Julie earns $9 each week as an allowance. If she spends $5 each week for lunch money and saves the rest, which expression shows how much money she will save in x weeks? A $9 $5x

A(9+9)X4



3.

8

($9

C

$9

I,

$95x





$5)x ($5



8

x)

X

3

(9 + 9) + 3 D (9 + 9) ÷ 4 C

ma writes the expression below. [x+5J ÷ [x—5J What is the value of ma’s expression for x= 10? A

(9+9)

10

85

c3

6.

What is the value of this expression? [(9 + 5) x (4—2)] x (5— 1) A

103

B

112

C

148

D

336

Dl

Standards Practice 0 Hou9hta MIfln H.cm,1 PtbhhIi Coii’p.ny

25

Getting Ready far PARCC

___ kli Math Minuli., htip:Hwwtv,wehmuthminutc .corntshee tspri

ALLTESTSfrom1 IolZ

LIJLLJJ1JL

I of 20

-

5 x3

8 —8

8 +10

12 -3

11 +11

9 x6

3 +5

6 x6

5 +1

45 —5

7 ÷1

16 ÷8

10 -1

7 xZ

12 +3

9 x12

2 x12

12 x3

3 +5

1 +4

2 x4

88 ÷8

21 ÷7

7 -1

1 -0

44 ÷11

S__

10 -2

-

6 x5

1 +11

1 xl

8 x5

6 -2

50 ÷5

16 —2

11 x9

7 x6

9 -2

9 -5

8 -1

10 +1

Vch Math Mintit

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ALL TESTS ftom Ito 12

3 of 20

÷9

50 ÷10

2 +12

72 ÷12

2 x3

8 +8

8 -f

12 ÷6

10 +8

10 -5

12 -9

40 ÷4

21 ÷3

8 -2

12 -6

9 -2

5 xlO

11 -8

10 +12

12 +1

5 -1

3 +4

5 x6

4 x5

÷8

÷9

-9

-5

x12

-z

+ii

6 +8

7 —1

11 -6

10 +11

36 —3

1 +2

9 +12

7 +5

84 —7

12 -7

6 ÷1

11 xli

11 x12

2 +11

8 -2

5 x4

4 -2

10 -6

27 ÷3

_ ___

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tittp://wvw.wehitiathtnitiute,tnlieeIs—prk

ALL TESTS from ito 12

LiJLWUtLiL

+

12 +4

72 ÷6

36 ÷9

1 x2

7 xlO

11 -4

7 xlO

8 ÷1

10 xiO

10 ÷1

3 ÷1

84 —7

8 xli

5 ÷1

9 xlO

10 x2

7 —7

12 x12

3 x4

4 x3

27 ÷9

5 +4

90 ÷9

11 -6

12 xl

70 ÷7

8 -2

24 ÷8

44 ÷11

5 xZ

8 7 -5+11

10 -7

1 x5

12 -2

2 +1

5 ÷1

5 +10

10 -5

9 x12

5of20 iiciii II.t

ALd

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ALL TESTS from Ito 12

tLL!J’LL1ti1

7 of 20

x9

12 +10

8 x7

40 ÷4

11 -6

1 xli

3 x7

8 x12

5 +7

24 ÷12

8 xZ

6 x9

55 ÷11

1 +5

4 +5

66 ÷11

70 ÷7

6 +8

5 +7

6 -2

7 -3

7 x9

x4

x12

+4

-6

—2

-5

—1

7 —7

II xlO

28 ÷4

15 ÷3

9 +12

7 +10

42 ÷6

5 +6

11 +12

8 xlO

1 +2

8 x8

9 ÷11

77 ÷7

11 +11

10 xl

9 -6

8 ÷2

12 -9

11 ÷11

55 ÷5

________ ‘.Vch iviath Mintne

hItp:ufwww3eehlnathtninulecom/shccts.prir

ALL TESTS from ito 12

9 of 20

6 +11

6 ÷8

11 x3

5 +6

10 +11

120 +10

3 +2

2 x4

84 ÷12

6 xlO

8 ÷11

7 x7

8 -j

45 ÷5

2 +5

8 -8

16 ÷2

7 ÷1

10 ÷10

8 +8

11 +2

56 —7

9 ÷12

7 -4

11 x3

2 x7

2 +9

5 +11

10 x3

5 +1

9 +4

11 +1

12 x5

9 -6

4 +9

1 +8

8 -8

8 x12

64 ÷8

10 -6

Web MuIh Mi mite

tittp://wwwwcbmaihininute.com/sheets-prin

ALL TESTS from ito 12

x7

8 x12

12 +7

24 ÷3

7 +8

12 -3

4 -1

10 -8

7 xli

5 x9

xlO

1 x8

10 +lj

10 -2

0 x2

24 ÷4

1 +7

10 +5

12 -3

2 x7

6 x12

4 x7

5 x12

3 +8

81 —9

6 -6

11 x6

9 -9

8 x3

4 -1

11 -10

8 x2

12 ÷1

11 +1

x6

÷9

÷8

x9

÷2

16 ÷4

4 +10

10 +12

8 -6

48 ÷6

6 x12

132 ÷11

11 x3

10 +5

132 ÷11

100 ÷10

Ii o120 hell

LVI(4I

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ALL TESTS from Ito 12

+7

9 -6

81 ÷9

3 x8

4 xlO

13 of 20

+9

+11

÷2

÷7

x3

x4

7 -6

460 +6 ÷6

11 x3

2 x4

77 —7

9 ÷3

4 x7

8 +12

35 ÷5

80 +8

3 x6

11 -9

10 -2

5 +8

36 ÷6

48 —12

9 xl

0 +1

132 ÷12

7 +2

2 +5

9 +4

7 xlO

8 -5

8 -6

3 x5

8 x9

25 ÷5

x6

1 ÷1

7 xli

84 ÷7

11 x6

2 +6

11 +6

11 +3

6 x9

6 -4

___ Veh Math Minute

___

__

_

http:/Iwww.wehinathmin tIIe.corn/shIeeIs’I)ri i

ALL TESTS from Ito 12

LLS1j Lii:

15 of 20

LLtJLLLit

÷

12 -8

9 x12

22 ÷11

12 -11

5 -5

6 ÷3

7

-z

8 +9

12 -11

40 ÷5

2 ÷1

12 x2

2 ÷1

4 -4

6 +1

5 -4

11 +4

7 +10

6 ÷2

12 +5

4 ÷1

25 +5

10 -9

8 +3

70 +7

11 +6

11 +12

12 x7

6 +12

4 ÷2

28 ÷4

6 +10

110 —11

11 -10

12 +2

120 ÷10

3 x8

3 -2

6 xlO

64 ÷8

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ALL TESTS from I to 12

LLft 63::

1 1 +5’ x3

4 -3

9 -5

12 -2

2 -1

12 ÷3

9 -8

2 +4

5 +7

10 -1

1 xli

12 ÷12

6 x9

7 xl

8 +2

4 +10

110 ÷10

-

9 +11

7 +1

2 +7

3 +9

9 -1

6 -3

10 +3

4 +11

12 ÷12

33 ÷11

5 -3

7 +1

3 x2

49 ÷7

5 -2

6 x12

1 +6

4 +1

7 +11

1 +8

7 -2

9 x3

7o120 -

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ALL TESTS from ito 12

19 of 20

x12

3 -2

+11

4 -3

3 x2

72 +9

2 x12

12 ÷4

5 -4

4 +1

20 ÷2

If -6

0 x4

5 x2

8 -8

81 ÷9

11 -3

9 x7

11 x5

7 +4

10 +7

12 -4

1 x8

11 x9

-1

÷8

x9

+3

+5

-8

+12

54 +9

6 x3

88 ÷11

6 -5

48 ÷4

60 +5

7 x4

9 +4

12 x8

II +9

6 -4

11 -11

10 -2

8 -5

7 -4

1 x6

4 xlO

4 +12

6 +2

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DIVISION from I to 12

I

3 —3

10 +5

18 ÷2

30 ÷3

nf2()

63 ÷7

12 ÷12

55 ÷11

90 ÷10

45 ÷9

20 ÷4

110 ÷11

9 ÷9

132 ÷11

36 —12

16 ÷2

99 +9

77 +11

88 ÷8

44 ÷4

12 ÷3

25 ÷5

90 ÷9

30 ÷3

2 1

44 ÷4

18 —6

24 -4

35 ÷5

6

8

÷1

+4

9 ÷1

8 ÷2

49 7

16 ÷4

56 ÷8

110 ÷10

90 ÷10

2 ÷1

18 ÷6

24 ÷3

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DIVISION from 1 to 72

.4n120

WLLff

LU LULLJJtIIL

20 ÷10

132 ÷12

12 ÷2

6 —2

20 ÷2

10 +2

10 ÷1

732 ÷11

36 ÷12

22 ÷2

30 ÷10

15 ÷3

64 ÷8

7 —1

50 ÷5

44 -4

6 ÷2

60 ÷5

50 ÷10

18 ÷3

14 ÷2

35 ÷7

81 —9

90 ÷9

12 ÷3

96 ÷8

70 ÷10

24 ÷12

110 ÷11

48 ÷6

9 ÷1

16 —2

12 ÷1

132 ÷11

30 ÷6

4 ÷1

40 —5

5 ÷1

8 —8

42 ÷6

3 ÷3

12 ÷1

30 ÷5

10 ÷2

66 ÷11

96 ÷12

12 —12

33 —3

5 ÷5

48 ÷4

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DIVISION

from

1

to

LLIU LUL I

16 ÷2

40 —5

96 ÷8

9 ÷1

24 —8

9 ÷9

27 ÷9

48 ÷12

48 ÷8

72 —12

121 ÷11

40 —5

40 ÷10

12 —12

40 ÷8

6 —1

60 ÷6

99 ÷11

33 —3

24 —2

96 ÷8

3 ÷3

56 ÷8

18 ÷9

96 ÷12

30 ÷5

77 +7

77 +7

120 ÷10

6 ÷6

16 ÷4

40 ÷10

36 ÷6

36 +4

110 ÷11

120 ÷12

8 ÷8

18 ÷3

55 ÷11

11 ÷11

5 &)t 21) ‘‘i’



—pi

12

z

I

(‘3 — 1

E 2

0

,

w o

w

fl

I

.

0.90 4.52

hour =

hour =

minutes

Circle the fractions that are equivalent to

2

1

0.88 4.8

8.91

8.3

2.05

2.2

0.58

0.7

10 15

9 12 4 9

12 18 4 6

____ ____ ___________ ___________

Scott received these math test scores this last marking period:

Subtract.

93, 96, 85, 100, 98, 100, 99, 95

5—10=

What is the Maximum?

38—45

=

32—40

The Minimum?

=

The Range?

=

The Median?

=63-75

Circle the best estimate for each problem.

27—37

What is the prime factorization for 175?

523 x 399

2,000

20,000

200,000

30,000

300,000

1,488 x 24

3,000

Multiply using partial-products algorithm.

26 X32

Multiply using partial-products algorithm.

93 X58

4

Make up a set of at least twelve numbers that has the following landmarks.

Minimum: 38 Maximum: 44 Median: 40 Mode: 39

Make up a bar graph for your set of numbers.

What’s My Rule? What About Me? In 320 $00

1,200 1,600

Out $ 20 12 40

t

I

In 18 12

Out 126 84 686

7 1,000 1,554

__ fThA1cRAS!

v-

Write each fraction as a whole number or a mixed number.

17

39

24 3

62 7

5 2

45

9 $

200 5

32 5

$3 9

Show at least two different ways.

Show

at least two different ways.

Write each mixed number as an improper fraction.

3 14

1 2

7

4

1 6

Name the shaded part of the whole square as a fraction and as a decimal.

L Fraction

Fraction:

Decimal

Decimal:

Find the whole set.

12 is of the set. 15 is

of the set.

lOis

of the set.

8is of the set.

______

________________

________(unit)

____

LI_McIactikjctioiJ____ 4

•1.•

-

Add

73

64

85

5

7

1

6 +3=

4=

+

Multiply



x

2

1x

x

—=

Rewriteeachfractionpairwithcommon denominators. ;and

1

25$

78

what

is its diameter?

3

4

6

8

10

man

—=

If the radius ofa circle is 2.5 inches,

Explain. 12and

1 j=

——————-———————

——————-———————

— —

——————-———————

——————-———————

——————-———————

4



-













——————l-——————— ——————-———————

——————-r3-



——————-:4-





——————--———————

——————--———————

12

Color the spinner so that you have a 25% chance of landing on orange and a 1/3 chance of landing on blue. Color the rest of the spinner yellow.

9

3

What is the probability of landing on yellow?

6

If you would spin the spinner 600 times, how many times would you expect to land on blue?

_______inches.

What is the perimeter of this shape?

What is the perimeter of this shape?

sin.

C C’,

U, CD

CD

sin. Perimeter:

Perimeter:

Find the area of the rectangle.

Find the area of the square.

(AREA

base x height)

3 yaj1s

CD

Area:

centimeters

What is the

approximate area of the covet of this book?

Area:

yards

Find the area of the following figures:

12

/ In

6cm. 11cm.

LJ 7 cm,

14 cm.

Area:

Area:

Area:

Area of a parallelogram: A base x height

Area of a triangle: A= Y2 x base x height

Draw a circle with the radius of 3.5 centimeters. What is the area of this circle to the nearest centimeter? About

Solve.

-60+c= 100

c=

mx25=$00

r—11O=-20

r=

144/k=12

k=

____ ____

____ ____

Use a straightedge to draw as many lines of symmetry as you can.

Complete the table.

0.19 47.5% 45 50 18 25 0.8$ 75%

Circumference (C) is the distance around a circle.

C=ltd or

C is the diameter (U).

C=27Cr

orZ is the radius (r). Te xt Find the circumference. 1. r=8mm C=2ltr

2x7txr

Use 3.14 as Zt. 2

x3.14 x 8

mm answer:

2. d=2Ocm C=ltd

3. r=6.4cm

4. d=lSmm

5. U=16.8

6. r8.1mm

7. r=3.3cm

7txd=

3.14 x 10 cm answer:

cm

mm