All the solutions provided in **McGraw Hill Math Grade 2 Answer Key PDF Chapter 4 Lesson 4 Subtract From a Two-Digit Number** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 4 Lesson 4 Subtract From a Two-Digit Number

**Explore and Explain**

**Teacher Directions:** Jack saw 34 crabs on the beach. Use base-ten blocks to show that number. 8 crabs ran into the water. Regroup and take away that many blocks. Draw the blocks that are left. Write how many crabs were left on the beach.

**See and Show**

**Helpful Hint**

Cross out each number as you regroup it.

Find 34 – 6.

Step 1 Show 34.

Can you subtract 6 ones?

Step 2

Regroup 1 ten as 10 ones.

4 ones + 10 ones = 14 ones.

Step 3

Subtract the ones.

Step 4

Subtract the tens.

**Use Work Mat 6 and base-ten blocks to subtract.**

Question 1.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 2.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

**Talk Math** How do you regroup 1 ten?

Explanation:

1 ten is regrouped as ten ones.

**On My Own**

**Use Work Mat 6 and base-ten blocks to subtract.**

Question 3.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 4.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 5.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 6.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 7.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 8.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 9.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 10.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 11.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 12.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 13.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 14.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

**Problem Solving**

Question 15.

Tina puts 12 coins in a machine. The machine keeps 4 of the coins. How many coins does she get back?

______ coins

Answer:

8 coins

Explanation:

Tina puts 12 coins in a machine.

The machine keeps 4 of the coins.

12 – 4 = 8

8 coins that she get back.

Question 16.

There are 38 apples in the cafeteria. Students buy 9 apples for their lunches. How many apples are left?

____ apples

Answer:

29 apples

Explanation:

There are 38 apples in the cafeteria.

Students buy 9 apples for their lunches.

38 – 9 = 29

29 apples are left.

Question 17.

A store has 76 shirts on display. The store sells 8 of the shirts. How many shirts are left?

____ shirts

Answer:

68 shirts

Explanation:

A store has 76 shirts on display.

The store sells 8 of the shirts.

76 – 8 = 68

68 shirts are left.

**HOT Problem** There are 23 boys and 33 girls gt a beach. 7 boys and 4 girls leave the beach, how many boys and girls are left altogether? Explain.

____________________

____________________

____________________

____________________

Explanation:

There are 23 boys and 33 girls gt a beach.

7 boys and 4 girls leave the beach,

23 + 33 = 56

7 + 4 = 11

56 – 11 = 45

45 boys and girls are left altogether

### McGraw Hill My Math Grade 2 Chapter 4 Lesson 4 My Homework Answer Key

**Practice**

**Subtract.**

Question 1.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 2.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 3.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 4.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 5.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 6.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

**Subtract**

Question 7.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 8.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 9.

Answer:

Explanation:

We cannot subtract bigger number from a smaller number

so, we need to regroup tens to ones

Question 10.

There are 27 children playing outside. 7 children go inside. How many are left?

_______ children

Answer:

20 children

Explanation:

There are 27 children playing outside.

7 children go inside.

27 – 7 = 20

20 are left.

Question 11.

There are 55 mice in the barn. A cat chases 9 of them away. How many mice are left?

____ mice

Answer:

46 mice

Explanation:

There are 55 mice in the barn.

A cat chases 9 of them away.

55 – 9 = 46

46 mice are left.

**Test Practice**

Question 12.

Find the difference.

43 – 9 = ____

(A) 52

(B) 44

(C) 33

(D) 34

Answer:

D

Explanation:

The difference of 43 and 9 is 34

43 – 9 = 34

**Math at Home** Ask your child to show you how to subtract 8 from 27 by regrouping.

Explanation: