All the solutions provided in **McGraw Hill My Math Grade 4 Answer Key PDF Chapter 4 Check My Progress** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 4 Chapter 4 Check My Progress Answer Key

**Check My Progress Page No. 221-222**

**Check My Progress**

**Vocabulary Check**

Question 1.

Match each definition to the corresponding vocabulary word.

Answer:

**Concept Check**

**Multiply. Use basic facts and patterns.**

Question 2.

2 × 60 = ___

Answer:

Multiplication of 2 with 60 then you get 120.

2 x 60 = 120.

Question 3.

9 × 600 = ___

Answer:

Multiplication of 9 with 600 then you get 5,400

9 x 600 = 5,400.

Question 4.

6 × 4,000 = ____

Answer:

Multiplication of 6 with 4,000 then you get 24,000.

**Estimate. Round to the greatest place value. Circle whether the estimate is greater than or less than the actual product.**

Question 5.

greater than

less than

Answer:

423 rounded to the greatest place value is 420.

6 x 420 = 2,520

Question 6.

greater than

less than

Answer:

1,987 rounded to the greatest value is 1,990.

1,990 x 5 = 9950.

**Draw an array or area model to multiply.**

Question 7.

2 × 15 = ___

Answer:

The array of 2 x 15 is

2 x 15 = 30.

Question 8.

3 × 19 = ____

Answer:

The array of 3 x 19

3 x 19 = 57.

**Problem Solving**

Question 9.

Grasshoppers can jump about 20 times their length. About how far could the grasshopper below jump?

_____

Answer:

Given that,

Grasshoppers can jump about 20 times their length.

The length of the Grasshoppers is 4 cm.

So, 4 x 20 = 80 cm.

Therefore the grasshopper jump 80 cm.

Question 10.

There are 21 boxes of markers in the art room. Each box holds 8 markers. How many markers are in the art room?

Answer:

Given that,

There are 21 boxes of markers in the art room.

Each box holds 8 markers.

So, 21 x 8 = 168.

Therefore there are 168 markers in the art room.

**Test Practice**

Question 11.

To find the product of 2 × 200, Julia used the basic fact 2 × 24. How many zeros should she include in the product of 2 × 200?

A. 1

B. 2

C. 3

D. 4

Answer:

The number of zeros in 2 x 200 is 0.

2 x 200 = 400.

Option B is the correct answer.

**Check My Progress Page No. 253-254**

**Vocabulary Check**

Question 1.

Circle the example that correctly shows how to use the Distributive Property to find the product of 5 × 15.

(5 × 10) + (5 × 5)

(5 × 10) × (5 × 15)

(5 × 10) × (5 × 15)

(5 × 10) + (5 × 15)

Answer:

Distributive Property of 5 x 15 is

(5 x 10) + (5 x 5).

The circle one is the correct answer.

Question 2.

Explain how to use partial products to multiply.

Answer:

To use the partial products, find the products for the ones, tens and so on separately and add then together.

Example is 12 x 5 is (10 x 5) + (2 x 5).

Question 3.

When you use place value to exchange equal amounts when renaming a number, what are you doing?

Answer:

When you use place value to exchange equal amounts when renaming a number, we use regrouping.

**Concept Check**

**Multiply. Check for reasonableness.**

Question 4.

Answer:

Multiplication of 23 with 2 then you get 46.

23 x 2 = 46.

Question 5.

Answer:

Multiplication of 227 with 8 then you get 1,816.

227 x 8 = 1,816.

Question 6.

Answer:

Multiplication of 45 with 7 then you get 315.

45 x 7 = 315.

Question 7.

Answer:

Multiplication of 612 with 4 then you get 2,228.

612 x 4 = 2,448.

**Problem Solving**

Question 8.

The table shows prices of items at an electronics store.

How much would it cost to buy 3 battery packs and 3 copper wires?

Answer:

Given that,

The cost of battery pack is $13.

The cost of Coper wire is $22.

The cost for 3 battery is $13 x 3 = $39.

The cost for 3 copper wires is $22 x 3 = $66.

Therefore the cost to buy 3 battery packs and 3 copper wires is $39 + $66 = $105.

Question 9.

Each campsite needs the number of lanterns shown below. How many lanterns are needed for 48 campsites?

Answer:

Given that,

The number of lanterns shown below is 3.

The number of lanterns are needed for 48 campsites is 3 x 48 = 144.

Therefore there are 144 lanterns for48 campsites.

Question 10.

There are 1,440 minutes in a day. How many minutes are in 7 days?

Answer:

Given that,

There are 1,440 minutes in a day.

The number of minutes for 7 days is 1,440 x 7 = 10,080.

Therefore there are 10,080 minutes in 7 days.

**Test Practice**

Question 11.

Mohammed used an area model to show 4 × 35.

What is the missing number?

A. 30

B. 5

C. 30

D. 50

Answer:

The missing number is 30.

Option A is the correct answer.