Rounding
Adding / Subtracting
Multiplying & Dividing by 10s
Multiplying /Dividing Decimals
Decimals and Percentages
100

Round 32.481 to one decimal place

32.5

100

12.45 + 3.61

16.06

100
Complete the sentence: When you multiply you move the decimal to the ______, when you divide you move the decimal to the _________.

When you multiply you move the decimal to the right, when you divide you move the decimal to the left.

100

12.31×7


86.17

100

30% = 

0.3

200

Round 123.456 to two decimal places

123.46

200

13.25 + 14.72 = 

27.97

200

14.304 × 100=

1430.4

200

42.837÷3

14.279

200

240% =

2.4

300

Round 27.51234 to the nearest whole number

28

300

5.882 + 3.010 + 12.700

21.592

300

36.7 ÷ 100

0.367

300

62.316 ÷ 0.03

2077.2

300

0.045 = 

4.5%

400

Round 120.4301 to the nearest tenth

120.4

400

17.2-5.1

12.1

400

6348.9 × 10 000

63,489,000

400

3.63 × 6.9

25.047

400

7.2% =

720%

500

Stephanie has been swimming in the Australian Swim competitions. She receives time of 52.834768 seconds. The swimming association recommends rounding to two decimal places. What is the time Stephanie will receive? 

52.83

500

5312.271 − 364.93

4947.341

500

93 261.1 ÷ 10 000

9.32611

500

67.04 ÷ 8000

0.00838

500

When they are both converted to a decimal, which is larger 1.99% or 1.99?

1.99 = 199%

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