All the solutions provided in **McGraw Hill Math Grade 2 Answer Key PDF Chapter 2 Lesson 3 Problem Solving** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 2 Lesson 3 Problem Solving

Kelly puts 5 party favors in each bag. She has 6 bags. How many favors does she need in all?

1 Understand Underling what you know. Circle what you need to find.

2 Plan How will I solve the problem?

3 Solve Find a pattern.

4. Check Is my answer reasonable? Explain.

**Practice the Strategy**

Kate and Pedro count the tickets they sold to attend a museum. They sold 10 tickets each day for 5 days. How many tickets were sold?

1. Understand Underline what you know. Circle what you need to find.

2. Plan How will I solve the problem?

3. Solve I will…

___, ____, ___, ___, ____

By day 5, ___ tickets were sold in all.

4. Check Is my answer reasonable? Explain.

Explanation:

Number of tickets per day = 10

Number of days = 5

5 x 10 = 50

So, number of tickets sold in all = 50 tickets

**Apply the Strategy**

Question 1.

Xavier is looking at a map of the desert. He knows that each finger width is about 10 miles. How many miles will he count if he uses 7 finger widths?

______ miles

Answer:

70 miles

Explanation:

He knows that each finger width is about 10 miles.

he uses 7 finger widths

7 x 10 = 70

70 miles that he will travel

Question 2.

Sam thinks of the number pattern 15, 20, 25, 30. He continues this pattern. What will be the next four numbers?

________ , ________ , ________ , ________

Answer:

15, 20, 25, 30, 35, 40, 45, 50

Explanation:

The pattern that Sam thought about was skip by 5

in skip by 5 keep adding five to get to the next number

30 + 5 = 35

35 + 5 = 40

40 + 5 = 45

45 + 5 = 50

Question 3.

Amar sees this number pattern. What is the missing number?

10, ___, 20, 25, 30

Answer:

10, 15, 20, 25, 30

Explanation:

15 is the missing number

The given pattern is skip by 5

in skip by 5 keep adding five to get to the next number

**Review the strategies**

Choose a strategy

- Write a number sentence.
- Act it out.
- Find a pattern.

Question 4.

Justin is stacking books. There are 5 books in the first stack. 10 in the second stack. The third stack has 15 books. The pattern continues. How many books will be in the next stack?

____ books

Answer:

20 books

Explanation:

There are 5 books in the first stack.

10 in the second stack. The third stack has 15 books.

The pattern continues.

The pattern is skip by 5

in skip by 5 keep adding five to get to the next number

15 + 5 = 20

Question 5.

On the first day of the food drive, Ms. Buckle’s class collects 8 cans. Mr. Cline’s class collects 6 cans, and Mrs. Brown’s class collects 5 cans. How many cans do they collect in all?

______ cans

Answer:

19 cans

Explanation:

Ms. Buckle’s class collects 8 cans.

Mr. Cline’s class collects 6 cans,

and Mrs. Brown’s class collects 5 cans.

8 + 6 + 5 = 19

19 cans that they collect in all

Question 6.

Josh recorded how many inches of snow fell in each month. Continue the pattern. How many inches fell in January?

Answer:

Explanation:

The given pattern about rain fall was skip by 2

we keep adding the same number each time to the previous number.

16 + 2 = 18

In month of January 18 inches of rain fall was measured.

### McGraw Hill My Math Grade 2 Chapter 2 Lesson 3 My Homework Answer Key

**Practice**

**Underline what you know. Circle what you need to find. Find a pattern to solve.**

Question 1.

One elephant has four legs. Two elephants have eight legs. How many legs do five elephants have? ____

Answer:

20 legs

Explanation:

One elephant has four legs.

Two elephants have eight legs.

20 legs that five elephants have

1 x 4 = 4

2 x 4 = 8

3 x 4 = 12

5 x 4 = 20

Question 2.

Corey is thinking of a number. It is the next number in the pattern 50, 45, 40, 35. What is the number? ____

Answer:

The number is 40

Explanation:

50, 45, 40, 35.

The pattern is skip by 5

in skip by 5 keep adding five to get to the next number

35 + 5 = 40

Question 3.

Brad has groups of 10 pennies. Brad counts 40, but he has 6 more stacks to count. How many pennies does he have?

___ pennies

Answer:

100 pennies

Explanation:

Brad has groups of 10 pennies.

Brad counts 40,

but he has 6 more stacks to count.

6 x 10 = 60

60 + 40 = 100

100 pennies that he have.

**Test Practice**

Question 4.

Which of the following is an example of skip counting?

8, 10, 20, 30, 40

40,35,25, 15,20

20, 25, 30, 35, 40

45, 55, 60, 70, 80

Answer:

8, 10, 20, 30, 40

40,35,25, 15,20

20, 25, 30, 35, 40

45, 55, 60, 70, 80

Explanation:

The given pattern is skip by 5

20 + 5 = 25

25 + 5 = 30

So, marked the third option.

**Math at Home** Ask your child to write a number pattern that uses 5 or 6 numbers. Have him or her explain the pattern to you.