x 10, 100, 1,000
Whole # x decimal
Multiplying with Zeros
Multiplying Decimals
Circumference
100
0.009 x 10
What is 0.09
100
9.8 x 2
What is 19.6?
100
0.87 x 0.04
What is 0.0348?
100
0.05 x 4.5
What is 0.225?
100

If the radius of a circle is 2 cm, what is the circumference?

What is 12.6 cm.

200
0.45 x 100
What is 45?
200
0.67 x 8
What is 5.36?
200
0.6 x 0.08
What is 0.048?
200
8.6 x 0.08
What is 0.688?
200

If the radius of a circle is 3.25 in, what is the circumference?

What is 20.4?

300
3.1 x 1,000
What is 3,100?
300
0.457 x 3
What is 1.371?
300
5.02 x 0.002
What is 0.01004
300
3.42 x 4.7
What is 16.074?
300

If the diameter of a circle is 0.65 ft, what is the circumference?

What is 2.0 ft?

400
0.062 x 100
What is 6.2?
400
45 x 0.003
What is 0.135?
400
3.04 x 0.009
0.02736
400
9.1 x 11.6
What is 105.56?
400

The radius of a circle measures 16 miles. What is the measure of its circumference to the nearest tenth?

What is 100.5?

500
2.89 x 10 2.89 x 100 2.89 x 1000
What is 28.9. 289. 2,890?
500
514 x 0.4
What is 205.6?
500
8.68 x 0.5
What is 4.34?
500
0.28 x 3.7
What is 1.036?
500

Find the circumference of a circle whose diameter is 12.5 yards to the nearest tenth?

What is 39.3 yds?