Practice the questions of **McGraw Hill Math Grade 4 Answer Key PDF Chapter 10 Lesson 7 Problem Solving: Draw a Picture and Write an Equation **to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 4 Answer Key Chapter 10 Lesson 7 Problem Solving: Draw a Picture and Write an Equation

**Solve**

Question 1.

Elsa is knitting a blanket. She used 4\(\frac{3}{8}\) meters of red yarn and 2\(\frac{4}{8}\) meters of gold yarn. How many meters of yarn did she use altogether?

Answer:

6\(\frac{7}{8}\) meters

Explanation:

Elsa is knitting a blanket

She used 4\(\frac{3}{8}\) meters of red yarn and

2\(\frac{4}{8}\) meters of gold yarn

Add to find the total number of meters of yarn

4\(\frac{3}{8}\) + 2\(\frac{4}{8}\) = 6\(\frac{7}{8}\) meters

So, Elsa used 6\(\frac{7}{8}\) meters of yarn altogether.

Question 2.

Katia is building a tree house. She needs 52 boards. Each board has to be 4 meters long. How much wood does Katia need?

Answer:

208 meters of wood

Explanation:

Katia is building a tree house

She needs 52 boards

Each board has to be 4 meters long

Multiply to find

52 x 4 = 208

So, Katia used 208 meters of wood.

Question 3.

Ms. Morton has 167\(\frac{3}{5}\) cm of string. She cuts the string into two pieces. One piece is 72\(\frac{1}{5}\) cm long. How long is the other piece?

Answer:

Explanation:

Ms. Morton has 167\(\frac{3}{5}\) cm of string

She cuts the string into two pieces

One piece is 72\(\frac{1}{5}\) cm long

Subtract to find the length of the other piece

167\(\frac{3}{5}\) – 72\(\frac{1}{5}\) = 95\(\frac{2}{5}\)

So, the other piece is 95\(\frac{2}{5}\).