We included HMH Into Math Grade 2 Answer Key PDF Module 16 Lesson 4 Add Three-Digit Numbers to make students experts in learning maths.

I Can regroup ones and tens to find sums of three-digit numbers.

Step It Out

Question 1.
At a soccer game, there are 243 people watching on one side of the field and 329 people on the other side. How many people are watching the game?

A. Add the numbers in the ones place.
THINK: Are there 10 or 2 more ones to make a new ten? Regroup the ones if you need to.

B. Add the numbers in the tens place.
THINK: Are there 10 or more tens to make a new hundred?
Regroup the tens if you need to.
9 + 3 = 12
so, we are regrouping 2 in ones place and tens place taken carry forward

C. Add the numbers ¡n the hundreds place.
2 + 3 = 5
200 + 300 = 500

D. Solve.
_________ people watching.
572 people are watching

E. Did you need to regroup? Explain.
yes we regrouped in tens place.

Question 2.
Mr. Bell counts 253 nickels and 367 dimes. How many nickels and dimes does he count?

A. Are there 10 or more ones to make a new ten?
Circle Yes or No.

Explanation:
there are more tens to make a new ten

B. Are there 10 or more tens to make a new hundred?
Circle Yes or No.
yes
Explanation:
There are more tens to make a new hundred

C. Solve.
Mr. Bell counts ________ nickels and dimes.
Mr. Bell counts 620 nickels and dimes.

Turn and Talk What happens if you do not include regrouped tens or hundreds when you add?
the sum could be incorrect

Check Understanding

Question 1.
Find the sum.

Explanation:
when the numbers you are adding come out to two digit numbers if they are not in the furthermost left column.
we will re group

Question 2.
At a zoo, there are 130 sea animals and 284 land animals. How many animals are at the zoo? Find the sum.

_________ animals

Explanation:
414 animals
At a zoo, there are 130 sea animals and 284 land animals.
130 + 284 = 414 animals

Use Structure Find the sum.

Question 3.

Explanation:
when the numbers you are adding come out to two digit numbers if they are not in the furthermost left column.
we will re group

Question 4.

Explanation:
when the numbers you are adding come out to two digit numbers if they are not in the furthermost left column.
we will re group

Question 5.
Attend to Precision Mr. Ming has 249 stamps. Mrs. Ming has 355 stamps. How many stamps do they have?

_________ stamps

Explanation:
Attend to Precision Mr. Ming has 249 stamps.
Mrs. Ming has 355 stamps.
249 + 355 = 604 stamps

Question 6.
Open Ended Write an addition word problem with 2 three-digit numbers. Choose addends that will require regrouping in the ones place, tens place, or both.

Write the numbers from your word problem in the chart. Add to solve.

Explanation:
Ken gets 430 marks in the first test. He gets 350 marks in the second test. How many marks does he get in all

Use Structure Find the sum.

Question 7.

Explanation:
when the numbers you are adding come out to two digit numbers if they are not in the furthermost left column.
we will re group

Question 8.

Explanation:
when the numbers you are adding come out to two digit numbers if they are not in the furthermost left column.
we will re group

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