Multiplying by Tens Worksheet

Multiplying by Tens

Read each question carefully and solve the multiplication problems. Remember the rule for multiplying by tens!

1. When you multiply a number by 10, you add a   to the end of the number.

2. 3 x 10 =  

3. 7 x 10 =  

4. 5 x 20 =   (Hint: Think 5 x 2, then add a zero!)

Solve the following problems:

9. 5 x 10 = 50

10. 2 x 40 = 800

11. Which number completes the equation: 7 x   = 70?

12. What is 5 multiplied by 30?

You can think of 3 x 10 as 3 jumps of 10 on a number line.

13. Sarah has 6 bags of marbles. Each bag has 10 marbles. How many marbles does Sarah have in total?

14. A baker bakes 5 batches of cookies. Each batch has 20 cookies. How many cookies did the baker bake?