All the solutions provided inÂ **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 4 Subtraction Strategies to 20 **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 4 Subtraction Strategies to 20

**ESSENTIAL QUESTION?** What strategies can I use to subtract?

Answer:

**Am I Ready?**

Question 1.

Circle the minus sign,

+ – =

Answer:

Explanation:

I drew a circle around minus sign(-).

Question 2.

Circle the equals sign,

+ – =

Answer:

Explanation:

I drew a circle around equals sign(=).

**Subtract.**

Question 3.

Answer:

Explanation:

The difference of 6 and 0 is 6

That is 6 – 0 = 6.

Question 4.

Answer:

Explanation:

The difference of 5 and 2 is 3

That is 5 – 2 = 3.

Question 5.

Answer:

Explanation:

The difference of 9 and 8 is 1

That is 9 – 8 = 1.

Question 6.

Answer:

Explanation:

The difference of 4 and 3 is 1

That is 4 – 3 = 1.

Question 7.

Answer:

Explanation:

The difference of 7 and 3 is 4

That is 7 – 3 = 4.

Question 8.

Answer:

Explanation:

The difference of 3 and 2 is 1

That is 3 – 2 = 1.

Question 9.

Cross out 4 whales. Use the pictures to write a subtraction number sentence.

Answer:

Explanation:

There are 8 whales

I crossed out 4 whales

8 – 4 = 4 is the subtraction number sentence.

**How Did I Do?** Shade the boxes to show the problems you answered correctly.

**My Math Words**

**Review Vocabulary**

false related facts true

Are the sets of number sentences related facts? Circle true or false.

Answer:

Explanation:

I drew a circle around true if the fact as related and around false if the facts are not related.

**My Vocabulary Cards**

Answer:

Explanation:

I wrote different vocabulary and drew to their their meaning.

**Teacher Directions:**

Ideas for Use

- Have students draw examples for each vocabulary card. Have them make drawings that are different from what is shown on the card.
- Ask students to use the blank cards to write their own vocabulary cards.

Addition and subtraction sentences that use the same numbers.

Answer:

5 + 4 = 9

9 – 5 = 4

On a number line, start at the greater number and count back.

Answer:

Explanation:

Start at 11

Count back 3

10, 9, 8

So, 11 – 3 = 8.

You can use subtraction facts to find a missing addend. The missing addend is 4.

Answer:

Explanation:

I wrote he missing addends using a subtraction sentence.

**My Foldable**

Foldables Follow the steps on the back to make your Foldable.

Answer:

Explanation:

I wrote the related addition equation for the given subtraction equation.

**Foldables**

**Study Organizer**

Answer:

Explanation:

I wrote an addition equation with the same numbers.