Question

Billy has 10 bouncy balls. His brother has 30 bouncy balls. He washed 10 of his and 10 of his brother. How many bouncy balls do they have left?

Answer 1

Answer:

20

Step-by-step explanation:

10 + 30 = 40

40 - 10 = 30

30 - 10 = 20

answer is 20

Answer 2

Answer:

20 bouncy Balls!

Step-by-step explanation:

10+30 - 20 = 20