Estimating
Decimal x Whole #
Decimal ÷ Whole #
Decimal x Decimal
Decimal ÷ Decimal
100

Estimate to the nearest whole number 3.2 x 4.8 =

15

100

0.8 x 9 =

7.2

100

4.2 ÷ 6 =

0.7
100

0.4 x 0.9 = 

0.36

100

0.6 ÷ 0.3 = 

2

200

Estimate to the nearest whole number 6.3 x 7.9 =

48

200

1.2 x 7 = 

8.4

200

3.5 ÷ 7 =

0.5

200

0.7 x 0.7 =

0.49

200

0.8 ÷ 0.2 =

4

300

Estimate to the nearest whole number 11.7 ÷ 2.5 =

4

300

2.5 x 8 =

20

300

8.8 ÷ 8 = 

1.1

300

1.8 x 0.3 = 

0.54

300

1.5 ÷ 0.5 = 

3

400

Estimate to the nearest whole number 19.6 ÷ 4.4 =

5

400

0.45 x 6 = 

2.7

400

10.8 ÷ 9 =

1.2

400

0.64 x 0.4 =

0.256

400

0.32 ÷ 0.24 = 

1.33333...

500

Estimate to the nearest whole number 16.13 x 9.65 =

160

500

3.75 x 4 =

15

500

51.999 ÷ 3 = 

17.333

500

3.14 x 0.62 = 

1.9468

500

6.48 ÷ 0.16 = 

40.5

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