We included **HMH Into Math Grade 4 Answer Key**** PDF** **Module 2 Addition and Subtraction of Whole Numbers **to make students experts in learning maths.

## HMH Into Math Grade 4 Module 2 Answer Key Addition and Subtraction of Whole Numbers

How can you reason in reverse?

- A filmmaker wants to record scenes on the roofs of three buildings. She uses a drone with a camera.
- Suppose the drone starts on the roof of one building, flies down to the roof of a second building, and then flies up to land on a third building, as shown.

- How tall is the first building? __________

The Height of the third building is 692 feet

The second is to third increases by 129 feet

so, 692 – 129 = 563 feet

From first to second it decreases by 183

so, 563 + 183 = 746

The first building height is 746 feet.

**Turn and Talk**

- How does the relationship between addition and subtraction help you solve this problem?

Explanation:

Addition and subtraction are the inverse operations of each other.

Put simply, this means that they are the opposite.

You can undo an addition through subtraction, and you can undo a subtraction through addition.

**Are You Ready?**

Complete these problems to review prior concepts and skills you will need for this module.

**Column Addition**

**Circle two addends to add first. Then find the sum.**

Question 1.

Answer:

Explanation:

6 + 4 = 10

10 + 2 = 12

Question 2.

Answer:

Explanation:

5 + 5 = 10

10 + 4 = 14

Question 3.

Answer:

Explanation:

8 + 2 = 10

7 + 3 = 10

10 + 10 = 20

**Two-Digit Addition and Subtraction**

**Find the sum or difference.**

Question 4.

Answer:

Explanation:

The sum of two digit numbers

16 + 35 = 51

Question 5.

Answer:

Explanation:

The difference of two digit numbers

84 – 56 = 28

Question 6.

Answer:

Explanation:

The sum of two digit numbers

67 – 29 = 38

**Subtract Through 3-Digit Numbers**

**Find the difference.**

Question 7.

Answer:

Explanation:

The difference of 591 – 7 = 584

Question 8.

Answer:

Explanation:

The difference of 805 – 26 = 779

Question 9.

Answer:

Explanation:

The difference of 200 – 46 = 154

Question 10.

Selena had 806 marbles in a jar. She gave Taryn 109 marbles from the jar. How many marbles does Selena have left in the jar?

Answer:

Selena had 806 marbles in a jar.

She gave Taryn 109 marbles from the jar.

806 – 109 = 697

Explanation:

697 marbles thatÂ Selena have left in the jar