All the solutions provided in McGraw Hill Math Grade 2 Answer Key PDF Chapter 4 Lesson 3 Regroup a Ten as Ones will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Answer Key Chapter 4 Lesson 3 Regroup a Ten as Ones
Explore and Explain
Teacher Directions: Adam has 23 sea shells. Use bose-ten blocks to show the sea shells. He gives 5 of them away. Regroup and take away that many blocks. How many sea shells are left? Draw the base-ten blocks that are left in the chart. Write how many sea shells are left.
Explanation:
See and Show
Find 24 – 8.
Step 1
Use base-ten blocks to show 24.
2 tens 4 ones
Step 2
Subtract the ones. There are not enough ones to subtract. Regroup.
1 ten 14 ones
Step 3
Subtract 8 ones.
1 ten 6 ones
24 – 8 = 16
Use Work Mat 6 and base-ten blocks to subtract.
Question 1.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 2.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Talk Math How do you know when you need to regroup? Explain.
On My Own
Helpful Hint
If there are not enough ones to subtract, regroup 1 ten as 10 ones.
Use Work Mat 6 and base-ten blocks to subtract.
Question 3.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 4.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 5.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 6.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 7.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 8.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 9.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 10.
Answer:
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Problem Solving
Use Work Mat 6 and base-ten blocks to subtract.
Question 11.
Logan draws 23 red flowers. He draws 14 yellow flowers. How many more red flowers than yellow flowers does he draw?
_____ red flowers
Answer:
9 red flowers
Explanation:
Logan draws 23 red flowers.
He draws 14 yellow flowers.
23 – 14 = 9
9 more red flowers than yellow flowers that he draw
Question 12.
There are 25 flower bulbs in a bag. Karen gives 7 bulbs to Ava. How many bulbs are left?
____ bulbs
Answer:
18 bulbs
Explanation:
There are 25 flower bulbs in a bag.
Karen gives 7 bulbs to Ava.
25 – 7 = 18
18 bulbs are left.
Question 13.
Candice has played in 8 soccer games There are 14 games in all. How many games does she have left?
_____ games
Answer:
6 games
Explanation:
Candice has played in 8 soccer games
There are 14 games in all.
14 – 8 = 6
6 games that she have left
Write Math Liam subtracts 5 from 23. Is the difference less than 20 or greater than 20? Explain.
______________________________
______________________________
______________________________
Explanation:
23 – 5 = 18
18 is less than 20.
McGraw Hill My Math Grade 2 Chapter 4 Lesson 3 My Homework Answer Key
Practice
Regroup the tens. Draw the ones. Cross out cubes to show subtraction. Write the answer.
Question 1.
26 – 9 = _____
Answer:
26 – 9 = 17
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 2.
23 – 5 = ____
Answer:
23 – 5 = 18
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Regroup the tens. Draw the ones. Cross out cubes to show subtraction. Write the answer.
Question 3.
21 – 7 = ___
Answer:
21 – 7 = 14
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 4.
30 – 6 = ____
Answer:
30 – 6 = 24
Explanation:
If there are not enough ones to subtract,
then we are regrouping 1 ten as 10 ones.
Question 5.
There are 42 icicles. 9 of them melt. How many icicles are left?
_____ icicles
Answer:
42 – 9 = 33
Explanation:
There are 42 icicles.
9 of them melt.
42 – 9 = 33
33 icicles are left
Question 6.
31 people are at the skating rink. 8 people go home. How many people are left at the skating rink?
_____ people
Answer:
23 people
Explanation:
31 people are at the skating rink.
8 people go home.
31 – 8 = 23
23 people are left at the skating rink
Test Practice
Question 7.
23 – 6 = _____
(A) 29
(B) 17
(C) 13
(D) 10
Answer:
B
Explanation:
23 – 6 = 17
Math at Home Have your child use pennies to show you how to subtract 6 from 25.
Explanation:
25 – 6 = 19