Go through the Math in Focus Grade 2 Workbook Answer Key Chapter 2 Practice 7 Addition with Regrouping in Ones and Tens to finish your assignments.

## Math in Focus Grade 2 Chapter 2 Practice 7 Answer Key Addition with Regrouping in Ones and Tens

**Add and regroup.**

Question 1.

488 + 123 = ?

Add and regroup the ones 8ones + 3 ones

488 + 123 = _______

= ________ ones

= ________ ten ________ one

Add and regroup the tens.

1 ten + 8 tens + 2 tens = _________ tens

= ________ hundred ________ ten

Add the hundreds.

1 hundred + 4 hundreds + 1 hundred = _________ hundreds

Answer:

488 + 123 = 611

Explanation:

8ones + 3 ones = 11 ones

11 ones = 1 ten 1 one

Add and regroup the tens.

1 ten + 8 tens + 2 tens = 11 tens

11 tens = 1 hundred 1 ten

Add the hundreds.

1 hundred + 4 hundreds + 1 hundred = 6 hundreds

Question 2.

Answer:

Explanation:

5 ones + 7 ones = 12 ones

12 ones = 1 ten 2 one

Add and regroup the tens.

1 ten + 9 tens + 2 tens = 12 tens

12 tens = 1 hundred 2 ten

Add the hundreds.

1 hundred + 5 hundreds + 1 hundred = 7 hundreds

595 + 127 = 722

Question 3.

Answer:

Explanation:

7 ones 4 ones = 11 ones

11 ones = 1 ten 1 one

Add and regroup the tens.

1 ten + 8 tens + 3 tens = 12 tens

12 tens = 1 hundred 2 ten

Add the hundreds.

1 hundred + 2 hundreds + 5 hundred = 8 hundreds

287 + 534 = 821

Question 4.

789 + 121 = _______

Answer:

Explanation:

9 ones and 1 ones = 10 ones

10 ones = 1 ten 0 one

Add and regroup the tens.

1 ten + 8 tens + 2 tens = 11 tens

11 tens = 1 hundred 1 ten

Add the hundreds.

1 hundred + 7 hundreds + 1 hundred = 9 hundreds

789 + 121 = 910

Question 5.

677 + 223 = _______

Answer:

Explanation:

7 ones + 3 ones = 10 ones

10 ones = 1 ten 0 one

Add and regroup the tens.

1 ten + 7 tens + 2 tens = 10 tens

10 tens = 1 hundred 0 ten

Add the hundreds.

1 hundred + 6 hundreds + 2 hundred = 9 hundreds

677 + 223 = 900

**Whose toys are these?**

**Add.**

**Then match the owner to the toy.**

Question 6.

Answer:

Explanation:

Matched the toys with their owners.

The sum is matched to the cost of toys.