We included **HMH Into Math Grade 4 Answer Key**** PDF** **Module 5 Lesson 5 Use Place Value to Multiply 2-Digit Numbers** to make students experts in learning maths.

## HMH Into Math Grade 4 Module 5 Lesson 5 Answer Key Use Place Value to Multiply 2-Digit Numbers

I Can use place value and regrouping to multiply a 2-digit number by a 1-digit number.

**Spark Your Learning**

Ramy is in a swim club that helps children learn about competitive swimming. In one race, he swims 4 laps of the pool. Each lap is 24 feet long. How far does Ramy swim during the race?

**Show your Thinking**

**Turn and Talk** How can thinking about place value help you solve this problem?

**Build Understanding**

1. For the standing long jump, Gwen lands a jump that measures 24 inches. Amelia’s jump is 2 times the length of Gwen’s jump. What is the measure of Amelia’s jump?

A. How can you use base-ten blocks to show 2 × 24? Draw a quick picture to show your answer.

B. Use what you know about place value to write 2 × 24 vertically.

**Record the numbers.**

C. When you multiply the ones, how can you record 2 × 4 ones? ____________

D. When you multiply the tens, how can you record 2 × 2 tens? ______________

E. Amelia’s jump measures ___________

**Turn and Talk** How do you know if your answer is reasonable?

**Step It Out**

2. Rachel practices swimming 5 days a week. Each practice lasts for 45 minutes. How many minutes does Rachel practice in a week?

A. Use base-ten blocks to show 5 × 45.

Draw a quick picture to show your work.

B. Write the problem vertically, lining up the digits by place value.

C. Multiply the ones. 5 × 5 ones = ___ ones

- Regroup ones as __ tens ___ ones. Record.

D. Multiply the tens. 5 × 4 tens = __ tens

- Add the regrouped __ tens + __ tens = __ tens
- Record the __ in the hundreds place and the __ in the tens place.

E. Rachel practices for ____ minutes in a week.

**Check Understanding Math Board**

Question 1.

Estimate. ___

Answer:

Question 2.

Estimate. ___

Answer:

**On Your Own**

Question 3.

The Gladiators scored twice as many points as the Patriots. How many points did the Gladiators score?

_________________

Answer:

**Estimate. Then find the product.**

Question 4.

Estimate: ___

Answer:

Question 5.

Estimate: ___

Answer:

Question 6.

Estimate: ___

Answer:

**Estimate. Write the problem vertically and solve.**

Question 7.

Estimate: ___

8 × 96

Answer:

Question 8.

Estimate: ___

3 × 52

Answer:

Question 9.

Estimate: ___

6 × 83

Answer:

Question 10.

**Reason** Why should you check to see if an answer is reasonable?

__________________

__________________

Answer:

**I’m in a Learning Mindset!**

What was the biggest challenge you faced in this lesson? How did you overcome it?

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