Powers of 10
Rounding to nearest whole number
Rounding and finding the range
Multi Digit Multiplication
100

Find the value of each expression. 

5.2 x 102  


520

100

Round to the nearest whole number and solve.

5.73 x 3.16 = 

6 x 3 = about 18 

100

Estimate each product and find the range.


3.29 x 3.81 =


3 x 3 = 9 

4 x 4 = 16 

between 9-16

100

What is 15 x 1,000 =

15,000

200

Find the value of each expression. 

2.6 x 104

2,600

200

Round to the nearest whole number and solve. 

13.6 x 9.82 = 

14 x 10 = about 140 

200

Estimate each product and find the range.

4.93 x 7.88 = 

4 x 7 = 28 

5 x 8 = 40 

between 28-40 

200

What is 36 x 17 = 

612 

300

Find the value of each expression. 

9.7 x 103

9,700

300

Round to the nearest whole number and solve. 

6.23 x 3.87 = 

6 x 4 = about 24 

300

Estimate each product and find the range.

7.77 x 10.8 = 

7 x 10 = 70

8 x 11= 88 

between 70-88 

300

What is 28 x 69?

1,932

400

Find the value of each expression. 

6.1 x 104

61,000

400

Round to the nearest whole number and solve. 

40.55 x 7.89 = 

41 x 8 = about 328 

400

Estimate each product and find the range.

20.11 x 9.96 = 

20 x 9 = 180 

21 x 10 = 210 

between 180-210 

400

What is 52 x 23 = 

1,196 

500

The diameter of earth at the equator is about 7.9 x 10miles. About how many miles is the diameter of earth? 

about 7,900 miles 

500

Round to the nearest whole number and solve. 

24.09 x 12.57 = 

24 x 13 = about 312

500

Estimate each product and find the range.

16.12 x 12.57 = 

16 x 3 = 48 

17 x 4 = 68 

between 48-68 

500

What is 145 x 68 = 

9,860