Go through the Math in Focus Grade 2 Workbook Answer Key Chapter 4 Practice 1 Using Part-Part-Whole in Addition and Subtraction to finish your assignments.

## Math in Focus Grade 2 Chapter 4 Practice 1 Answer Key Using Part-Part-Whole in Addition and Subtraction

**Solve.**

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Question 1.

Miss Lucy has 27 students in her morning ballet class. She has 39 students in her afternoon ballet class. How many students does she have in both classes?

27 + 39 = ____

She has ____ students in both classes.

Answer:

She has 66 students in both classes.

Explanation:

Given that Miss Lucy has 27 students in her morning ballet class and she has 39 students in her afternoon ballet class. So the number of students does she have in both classes is 27+39 which is 66 students.

Question 2.

Rani collects 365 beads in January. She collects 419 beads in April. How many beads does she collect in January and April?

She collects ___ beads in January and April.

Answer:

She collects 784 beads in January and April.

Explanation:

Given that Rani collects 365 beads in January and she collects 419 beads in April. So the number of beads does she collect in January and April is 365+419 which is 784 beads.

**Solve.**

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Question 3.

Mr. Jackson drove 427 miles last week. This week, he drove 215 miles. How many miles did he drive in the two weeks?

He drove ___ miles in the two weeks.

Answer:

He drove 642 miles in the two weeks.

Explanation:

Given that Mr. Jackson drove 427 miles last week and this week, he drove 215 miles. So the number of miles did he drive in the two weeks is 427+215 which is 642 miles.

Question 4.

143 men and 62 women go to a concert. How many adults go to the concert?

____ adults are at the concert.

Answer:

205 adults are at the concert.

Explanation:

Given that 143 men and 62 women go to a concert. So the number of adults who attended to the concert is 143+62 which is 205 adults.

**Solve.**

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Question 5.

There are 278 people at a camp. 26 of them are teachers and the rest are children. How many children are there?

278 – 26 = ____

There are ___ children.

Answer:

There are 252 children.

Explanation:

Given that there are 278 people at a camp and 26 of them are teachers and the rest are children. So the number of children is 278-26 which is 252 children.

Question 6.

Mr. Wilson packs 431 files in two boxes. He packs 216 files in the first box. How many files does he pack in the second box?

He packs ___ files in the second box.

Answer:

He packs 215 files in the second box.

Explanation:

Given that Mr. Wilson packs 431 files in two boxes and he packs 216 files in the first box. So the number of files does he pack in the second box is 431-216 which is 215 boxes.

**Solve.**

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Question 7.

A letter carrier delivers 999 letters in two days. The carrier delivers 306 letters on Monday and the rest of the letters on Tuesday. How many letters does the carrier deliver on Tuesday?

The carrier delivers ___ letters on Tuesday.

Answer:

The carrier delivers 693 letters on Tuesday.

Explanation:

Given that a letter carrier delivers 999 letters in two days and the carrier delivers 306 letters on Monday and the rest of the letters on Tuesday. So the number of letters does the carrier delivers on Tuesday is 999-306 which is 693 letters.

Question 8.

A factory makes 674- toys in two days. 325 toys are made on the first day. How many toys does the factory make on the second day?

The factory makes ___ toys on the second day.

Answer:

The factory makes 349 toys on the second day.

Explanation:

Given that a factory makes 674 toys in two days and 325 toys are made on the first day. So the number of toys does the factory makes on the second day is 674-325 which is 349 toys.