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0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

Dec 24, 2015

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Phebe Morrison
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Page 1: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 400300200100 500

Rounding Off Using Number Line

Page 2: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 400300200100 50050 150 250 350 450

Rounding Off Using Number Line

Page 3: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 10 20 30 40 50 60 908070 100

Rounding Off Using Number Line

Page 4: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

2021 22 23 24 25 26 292827

30

Rounding Off Using Number Line

Page 5: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 10 20 30 40 50 60 908070 100

Rounding Off Using Number Line

Round off 37 to the nearest ten

37 is between 30 and 40.

Page 6: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

Rounding Off Using Number Line

Round off 37 to the nearest ten

3031 32 33 34 35 36 393837

4037

37 is nearer to 40 than to 30.37 is when rounded off to the nearest ten.

40

X

37 40

Page 7: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 10 20 30 40 50 60 908070 100

Rounding Off Using Number Line

Round off 66 to the nearest ten

66 is between 60 and 70.

Page 8: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

Rounding Off Using Number Line

Round off 66 to the nearest ten

6061 62 63 64 65 66 696867

7066

66 is nearer to 70 than to 60.66 is when rounded off to the nearest ten.

70

X

66 70

Page 9: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 10 20 30 40 50 60 908070 100

Rounding Off Using Number Line

Round off 11 to the nearest ten

11 is between 10 and 20.

Page 10: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

Rounding Off Using Number Line

Round off 11 to the nearest ten

1011 12 13 14 15 16 191817

2011

11 is nearer to 10 than to 20.11 is when rounded off to the nearest ten.

10

X

11 10

Page 11: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

0 10 20 30 40 50 60 908070 100

Rounding Off Using Number Line

Round off 45 to the nearest ten

45 is between 40 and 50.

Page 12: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

Rounding Off Using Number Line

Round off 45 to the nearest ten

4041 42 43 44 45 46 494847

5045

45 is halfway between 40 and 50.45 is when rounded off to the nearest ten.

50halfway

X

45 50

Page 13: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

100 110 120 130 140 150 160 190180170 200

Rounding Off Using Number Line

Round off 186 to the nearest ten

186 is between 180 and 190.

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Rounding Off Using Number Line

Round off 186 to the nearest ten

180181 182 183 184 185 186 189188187

190186

186 is nearer to 190 than to 180.186 is when rounded off to the nearest ten.

190

X

186 190

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Rounding Off Using Number Line

What are the other numbers that can be rounded off to 40 aside from 37?

3031 32 33 34 35 36 393837

4037

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Rounding Off Using Number Line

35 36 393837

4041 42 43 44 4537

no

What are the other numbers that can be rounded off to 40 aside from 37?

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Rounding Off Using Number Line

1011 12 13 14 15 16 191817

20

What are the other numbers that can be rounded off to 10 aside from 11?

11

no

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Rounding Off Using Number Line

56 7 8 9 10 141312

1511

no

What are the other numbers that can be rounded off to 10 aside from 11?

Page 19: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

The number of pupils in class Cana A is 30 when rounded off to the nearest ten. What could be the actual number of pupils in Cana A?

20 40 30

25

26

27

28

29

31

32

33

34

35

24

no

no

25 35

What could be the maximum number of students in class Cana A?

Page 20: 0400300200100500 Rounding Off Using Number Line. 0400300200100500 50150250350450 Rounding Off Using Number Line.

The number of pupils in class Cana A is 30 when rounded off to the nearest ten. What could be the actual number of pupils in Cana A?

20 40 30

25

26

27

28

29

31

32

33

34

35

24

no

no

25 35

What could be the minimum number of students in class Cana A?

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What are the numbers in the ones place that can be rounded off to the nearest ten after the given number?

1 2 3 4 5 6 7 8 9

Example: 3 9 4 0

30 4039

X

40 is the nearest ten after 39

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1 2 3 4 5 6 7 8 9

Example: 16 8 170

160 170168

X

170 is the nearest ten after 168

What are the numbers in the ones place that can be rounded off to the nearest ten after the given number?

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1 2 3 4 5 6 7 8 9

Example: 3 3 30

30 4033

X

30 is the nearest ten before 33

What are the numbers in the ones place that can be rounded off to the nearest ten before the given number?

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1 2 3 4 5 6 7 8 9

Example: 18 2 180

180 190182

X

180 is the nearest ten before 182

What are the numbers in the ones place that can be rounded off to the nearest ten before the given number?