All the solutions provided in 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.