All the solutions provided inÂ **McGraw Hill My Math Grade 2 Answer Key PDF Chapter 11 Lesson 6 Problem-Solving Strategy: Use Logical Reasoning **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 11 Lesson 6 Problem-Solving Strategy: Use Logical Reasoning

Koko wants to plant a garden. She cannot decide if it should be 10 inches, 10 feet, or 100 yards long. About how long should the garden be?

1. Understand

Underline what you know.

Circle what you need to find.

2. Plan

How will I solve the problem?

3. Solve

Use logical reasoning

4. Check

Is my answer reasonable? Explain.

Answer:

Yes, my answer is reasonable

10 inches will be very short

100 yards will be very long so, 10 feet long is correct.

**Practice the Strategy**

Zachary is looking up at the high diving board at the pool. Is the high diving board 10 inches high, 10 feet high, or 10 yards high?

1. Understand

Underline what you know.

Circle what you need to find.

2. Plan

How will I solve the problem?

3. Solve

I will …

4. Check

Is my answer reasonable? Explain.

Answer:

10 feet height is maximum

because, 10 inches will be vey low and 10 yards will be very deep

so, 10 feet my answer is reasonable.

**Apply the Strategy**

Question 1.

Sam planted a tomato plant that is 1 foot tall. The plant grows a little each week. After 4 weeks, would the plant be 10 inches or 14 inches tall?

_____________ inches

Answer:

10 inch

Explanation:

Sam planted a tomato plant that is 1 foot tall.

The plant grows a little each week. After 4 weeks,

The plant must grow 10 inch longer.

Question 2.

Jane made a paper chain that is I yard long. Brad made a paper chain that is 2 feet long. Who made the longer paper chain?

Answer:

Jane

Explanation:

Jane made a paper chain that is I yard long.

Brad made a paper chain that is 2 feet long.

1 yard = 3 feet

so, Jane made longer paper chain

Question 3.

Mr. Mooreâ€™s class is collecting things to measure. Lisa finds a pinecone. Would the pinecone be 3 inches, 3 feet, or 3 yards long?

Answer:

3 inch.

Explanation:

Lisa finds a pinecone.

so, the length of the pine cone must be 3 inches

it cannot be longer than 3 inch.

**Review the Strategies**

Choose a strategy

- Use logical reasoning.
- Write a number sentence.
- Make a model.

Question 4.

Santos connected 6 markers. Each marker measures 5 inches. How long are all the markers?

____________ inches

Answer:

30 inches

Explanation:

Santos connected 6 markers.

Each marker measures 5 inches.

6 x 5 = 30

30 inches that all the markers in all.

Question 5.

Jamil had a pencil that was 6 inches long. After a month it was an inch long. How many inches did Jamil use?

_____________ inches

Answer:

5 inches

Explanation:

Jamil had a pencil that was 6 inches long.

After a month it was an inch long.

6 – 1 = 5

so, Jamil used 5 inches

Question 6.

Suni measured from one end of her kitchen table to the middle. It was 42 inches long. Then she measured from the middle to the other end. It was the same length. How long is the table?

_____________ inches

Answer:

84 inches

Explanation:

Suni measured from one end of her kitchen table to the middle.

It was 42 inches long. Then she measured from the middle to the other end.

It was the same length.

42 + 42 = 84

The table is 84 inches long.

### McGraw Hill My Math Grade 2 Chapter 11 Lesson 6 My Homework Answer Key

**Problem Solving**

**Underline what you know. Circle what you need to find. Use logical reasoning to solve.**

Question 1.

A bookshelf is 14 inches wide. There is enough space to fit 2 trophies. One trophy is 2 inches wider than the other. How wide is the wider trophy?

______________ inches

Answer:

2 inches

Explanation:

A bookshelf is 14 inches wide.

There is enough space to fit 2 trophies.

One trophy is 2 inches wider than the other.

6 + 6 = 12

so, each trophy must be 6 and 6 one of the trophy is 2 inches more

so, 6 + 8 = 14

The second trophy is 2 inches wider.

Question 2.

Joan has a stalk of celery that is 6 inches long. She cuts it into two pieces. Each piece is the same length. How long is each piece.

______________ inches

Answer:

3 inches

Explanation:

Joan has a stalk of celery that is 6 inches long.

She cuts it into two pieces.

Each piece is the same length.

3 + 3 = 6

so, each piece is 3 inch long

Question 3.

Marlon and Brent are each measuring one of their shoes. Their shoes measure 11 inches in all. Marlonâ€™s shoe is 1 inch longer than Brentâ€™s shoe. How long is Brentâ€™s shoe?

______________ inches

Answer:

12 inch.

Explanation:

Their shoes measure 11 inches in all.

Marlonâ€™s shoe is 1 inch longer than Brentâ€™s shoe.

11 + 1 = 12 inch

Brentâ€™s shoe is 12 inch long that is 1 foot

**Test Practice**

Question 4.

36 inches is ___________ feet.

(A) 1

(B) 2

(C) 3

(D) 4

Answer:

C

Explanation:

1 foot = 12 inches

12 inch is equal to 1 foot

36 divided by 12 = 3

36 inches is 3 feet.

**Math at Home** Ask your child to estimate distances from one room to another. Have our child check by measuring.

Answer:

Distance between from one room to the other room is 5 meters.