# McGraw Hill Math Grade 3 Chapter 4 Lesson 9 Answer Key Problem Solving

## McGraw-Hill Math Grade 3 Answer Key Chapter 4 Lesson 9 Problem Solving

Solve.

Question 1.
Franz bought 3 bags of lemons. Each bag has 7 lemons. How many lemons does he have in all?
21 in all

3 × 7 = 21 lemons
Number of lemons he have in all = 21.

Explanation:
Number of lemons of  bags Franz bought = 3.
Number of lemons in each bag = 7.
Number of lemons he have in all = Number of lemons of  bags Franz bought × Number of lemons in each bag
= 3 × 7
= 21.

Question 2.
The zoo has 11 black bears and 13 brown bears. How many bears live at the zoo?
_____ in all

____ + ____ = ____ bears
Total number of bears in the zoo = 24.

Explanation:
Number of black bears in the zoo = 11.
Number of brown bears in the zoo = 13.
Total number of bears in the zoo = Number of black bears in the zoo + Number of brown bears in the zoo
= 11 + 13
= 24.

Question 3.
Nick tries to solve 2 × 1. He drew these circles.
Why will his answer be wrong?