We included **HMH Into Math Grade 4 Answer Key PDF** **Module 20 Review **to make students experts in learning maths.

## HMH Into Math Grade 4 Module 20 Review Answer Key

**Vocabulary**

Question 1.

Draw lines to match the description to the correct term. Not all terms will be used.

Answer:

**Concepts and Skills**

**Compare. Write >, <, or =.**

Question 2.

20 kilometers 20,000 meters

Answer:

20 kilometers 20,000 meters

Explanation:

We know that 1 kilometer is equal to 1,000 meters.

To convert 20 km into meters we need to multiply 20 with 1,000 the product is equal to 20,000 meters

20 km = 20 x 1,000 = **20,000 meters**

So, 20 kilometers is **equal to** 20,000 meters.

Question 3.

5 liters 500 milliliters

Answer:

5 liters 500 milliliters

Explanation:

We know that 1 liter is equal to 1,000 milliliters.

To convert 5 liters into milliliters we need to multiply 5 with 1,000 the product is equal to 5,000 milliliters.

5 liters = 5 x 1,000 =** 5,000 milliliters**

So, 5 liters is **greater than** 500 milliliters.

Question 4.

8 grams 9,000 milligrams

Answer:

8 grams 9,000 milligrams

Explanation:

We know that 1 gram is equal to 1,000 milligrams.

To convert 8 grams into milligrams we need to multiply 8 with 1,000 the product is equal to 8,000 milligrams.

8 grams = 8 x 1,000 = **8,000 milligrams**

So, 8 grams is **less than** 9,000 milligrams.

Question 5.

200 centimeters 25 decimeters

Answer:

200 centimeters 25 decimeters

We know that 1 decimeter is equal to 10 centimeters.

To convert 25 decimeters into centimeters we need to multiply 25 with 10 the product is equal to 250 centimeters.

25 dm = 25 x 10 = **250 cm**

So, 200 centimeters is **less than** 25 decimeters.

Question 6.

Use benchmarks to choose which metric unit would be best to measure the width of your desk.

Answer:

**Meter** is the best metric unit to measure the width of my desk.

Question 7.

**Use Tools** Mr. Jonas buys 3 kilograms of pears and 4.5 kilograms of strawberries. How many more grams of strawberries than pears does he buy? Tell what strategy or tool you will use to answer the question, explain your choice, and then find the answer.

Answer:

Mr. Jonas buys 3 kilograms of pears and 4.5 kilograms of strawberries.

We know that 1 kilogram is equal to 1,000 grams.

To convert 3 kilograms of pears into grams, we need to multiply 3 with 1,000 the product is equal to 3,000 grams.

3 kg = 3 x 1,000 =** 3,000 g**

To convert 4.5 kilograms of strawberries into grams, we need to multiply 4.5 with 1,000 the product is equal to 4,500 grams.

4.5 kg = 4.5 x 1,000 = **4,500 g**

Mr. Jonas buys 3,000 grams of pears and 4,500 grams of strawberries.

4,500 – 3,000 = **1,500 grams
**He bought more

**1,500 grams**of strawberries than pears.

**Complete.**

Question 8.

30 decimeters = _______ meters

Answer:

30 decimeters =** 3** meters

Explanation:

We know that 1 meter is equal to 10 decimeters.

1 meter = 10 decimeter

? meters = 30 decimeters

(30 x 1)/10 =** 3 meters**

So, 30 decimeters is equal to **3 meters**.

Question 9.

6 liters = _________ milliliters

Answer:

6 liters = **6,000** milliliters

Explanation:

We know that 1 liter is equal to 1,000 milliliters.

To convert 6 liters into milliliters we need to multiply 6 with 1,000 the product is equal to 6,000 milliliters.

6 liters = 6 x 1,000 =** 6,000 milliliters**

So, 6 liters is equal to 6,000 milliliters.

Question 10.

8 kilograms = _________ grams

Answer:

8 kilograms = **8,000** grams

Explanation:

We know that 1 kilogram is equal to 1,000 grams.

To convert 8 kilograms into grams we need to multiply 8 with 1,000 the product is equal to 8,000 grams.

8 kilograms = 8 x 1,000 =** 8,000 grams
**So, 8 kilograms is equal to

**8,000 grams**.

Question 11.

5 meters = __________ centimeters

Answer:

5 meters = **500** centimeters

Explanation:

We know that 1 meter is equal to 100 centimeters.

To convert 5 meters into centimeters we need to multiply 5 with 100 the product is equal to 500 centimeters.

5 m = 5 x 100 =** 500 cm**

So, 5 meters is equal to 500 centimeters.

Question 12.

Answer:

Explanation:

1 liter is equal to 1,000 milliliters.

1 liter = 1,000 milliliters

4 liters = ? milliliters

(1,000 x 4)/1 =** 4,000 milliliters**

So, 4 liters is equal to 4,000 milliliters.

1 liter = 1,000 milliliters

? liters = 8,000 milliliters

(8,000 x 1)/ 1,000 = **8 liters**

So, 8 liters is equal to 8,000 milliliters.

1 liter = 1,000 milliliters

? liters = 12,000 milliliters

(12,000 x 1)/ 1,000 = **12 liters**

So, 12 liters is equal to 12,000 milliliters.

Question 13.

Answer:

Explanation

1 gram is equal to 1,000 milligrams.

1 gm = 1,000 mg

? gm = 2,000 mg

(2,000 x 1)/ 1,000 = **2 grams**

So, 2 grams is equal to 2,000 milligrams.

1 gm = 1,000 mg

4 gm = ? mg

(1,000 x 4)/1 =** 4,000 mg**

So, 4 grams is equal to 4,000 milligrams.

1 gm = 1,000 mg

6 gm = ? mg

(6,000 x 4)/1 =** 6,000 mg**

So, 6 grams is equal to 6,000 milligrams

Question 14.

Write the correct letter to match the equivalent amounts.

Answer:

Explanation:

We know that 1 meter is equal to 100 centimeters.

3 meters = 3 x 100 = 300 centimeters

So, 3 meters is equal to **300 centimeters**.

We know that 1 kilogram is equal to 1,000 grams.

3 kilograms = 3 x 1,000 = 3,000 grams

So, 3 kilograms is equal to **3,000 grams**.

We know that 1 liter is equal to 1,000 milliliters.

3 liters = 3 x 1,000 = 3,000 milliliters

So, 3 liters is equal to **3,000 milliliters**.

Question 15.

Which of the following has a mass of about 1 kilogram?

Choose all that are correct.

(A) glass of water

(B) dictionary

(C) cantaloupe

(D) horse

(E) car

Answer:

Option C has a mass of about 1 kilogram.

Question 16.

The students are using bags of sand to secure tents at an event. If they have twenty-five 50-pound bags, how many ounces of sand do they have to secure the tents at the event?

Answer:

We know that 1 pound is equal to 16 ounces.

The students have twenty-five 50-pound bags.

Multiply 50 pounds with 16 ounces the result is equal to 800 ounces.

50 x 16 = 800 ounces

Multiply 25 with 800 the result is equal to 20,000 ounces.

800 x 25 = 20,000 ounces

**20,000 ounces** of sand Students have to secure the tents at the event.

Question 17.

Sam brings 1 gallon of sherbet to a party. Charley brings \(\frac{1}{2}\) gallon of sherbet and Lance brings 6 pints of sherbet to the same party. How many pints of sherbet did they bring to the party?

Answer:

Sam brings 1 gallon of sherbet to a party.

We know that 1 gallon is equal to 8 pints.

So, Sam brings **8 pints** of sherbet to a party.

Charley brings \(\frac{1}{2}\) gallon of sherbet to a party.

\(\frac{1}{2}\) gallon = 4 pints

So, Charley brings **4 pints** of sherbet to a party.

Lance brings **6 pints** of sherbet to the same party.

8 + 4 + 6 = 18 pints

They brought** 18 pints** of sherbet to the party.