Fractions/Decimals
Rounding
Decimal Addition and Subtraction
Mental Math
Placing the decimal point
100

3/10 as a decimal

0.3

100

4.7 rounded to the nearest whole number

5

100

5.4 + 2.2

7.6

100

80  X 30

2400

100

2.1 X 3 = 63

6.3

200

0.24 as a fraction

24/100

200

25.36 rounded to the nearest whole number

25

200

982.12 -5.99

976.13

200

24,000 divided by 60

400

200

54.2 × 3.12= 1 6 9 1 0 4

169.104

300

0.08 as a fraction

8/100

300

346.847 rounded to the tenths place

346.8

300

94.2 + 785.94 

880.14

300

120 X 4,000

480,000

300

8.34 X 0.123 = 1 0 2 5 8 2

1.02582

400

Three hundredths written as a fraction and as a decimal

0.03  3/100

400

72.569 rounded to the hundredths place

72.57

400

42 + 8.8

50.8

400

720,000 divided by 900

800

400

1.58 X 924 = 1 4 5 9 9 2

1459.92  

500

Forty-five thousandths written as a fraction and as a decimal

0.045    45/1000

500

97.97 rounded to the tenths place

98

500

86 - 14.25

71.75

500

300,000 divided by 60

5,000

500

0.501 X 1.234= 0 6 1 8 2 3 4 

0.618234

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