Question

Amy has 23 tennis balls and Jade has 44 tennis balls. How many balls do they have in total?

• A. 56
• B. 67
• C. 54
• D. 65

Answer 1

The correct option is B 67

Given, Amy has 23 tennis balls and Jade has 44 tennis balls.
So, the total number of tennis balls = 23 + 44

Let’s use decomposition to expand the number of tennis balls with each of them.
23 = 20 + 3
44 = 40 + 4

Let’s add all the tens and ones separately.
20 + 40 = 60
3 + 4 = 7
We get 6 tens and 7 ones.
60 + 7 = 67

So, 23 + 44 = 67
So, they have 67 balls in total.