Multiplying by Multiples of Ten

Front

What is 4 groups of 20 students?

Back

4 x 20 = 80 students.

Front

How do you solve 7 x 80?

Back

Use the expression 7 x 8 x 10.

Front

What is 70 x 2?

Back

70 x 2 = 140.

Front

What is 3 x 10?

Back

3 x 10 = 30.

Front

What is 40 x 1?

Back

40 x 1 = 40.

Front

What is the value of 10 x 5?

Back

10 x 5 = 50.

Front

How do you express 60 x 3 using multiples of ten?

Back

60 x 3 = 6 x 10 x 3 = 180.

Front

What is 5 x 20?

Back

5 x 20 = 100.

Front

What is 8 x 10?

Back

8 x 10 = 80.

Front

What is 9 x 30?

Back

9 x 30 = 270.