rounding off stage 4 years 7 & 8 press ctrl-a ©2009 g dear – not to be sold/free to use

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Rounding Off Rounding Off Stage 4 Stage 4 Years 7 & 8 Years 7 & 8 Press Ctrl-A Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

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Page 1: Rounding Off Stage 4 Years 7 & 8 Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

Rounding OffRounding OffStage 4Stage 4

Years 7 & 8Years 7 & 8

Press Ctrl-APress Ctrl-A©2009 G Dear – Not to be sold/Free to use

Page 2: Rounding Off Stage 4 Years 7 & 8 Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

2

6.46.4

6.96.9

6.2 6.2

6.76.7

6.56.5

6.86.8

6.16.1

6.36.3

Rounding Off Decimals

Estimate the position of the decimaland so round it off.

66 77

66

77

77

77

66

77

66

66

End ofEnd ofSlideSlide

Page 3: Rounding Off Stage 4 Years 7 & 8 Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

3

3.143.14

3.193.19

3.12 3.12

3.173.17

3.153.15

3.183.18

3.113.11

3.133.13

Estimate the position of the decimaland so round it off.

3.13.1 3.23.2

3.13.1

3.23.2

3.23.2

3.23.2

3.13.1

3.23.2

3.13.1

3.13.1

Rounding Off Decimals

End ofEnd ofSlideSlide

Page 4: Rounding Off Stage 4 Years 7 & 8 Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

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To round of decimals

1.Cross off decimal places not needed.

Round 3.83533.8353 to 2 decimals places2 decimals places

2.If the next digit is 5 or greater5 or greater then add ‘11’ to the last digit.

3.843.84

Round 3.83533.8353 to 3 decimals places3 decimals places

3.8353.835

Rounding Off Decimals

End ofEnd ofSlideSlide

Page 5: Rounding Off Stage 4 Years 7 & 8 Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

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b) 2.2523 [[1]]

c) 45.278 [[2]]

d) 4.3593 [[0]]

a) 4.7573 [[3]]

Round off the decimals to the numberof paces indicated in [ ][ ].

4.757

2.3

45.28

4

Rounding Off Decimals

End ofEnd ofShowShow

RoundingRoundingDecimalsDecimals