Go through the Math in Focus Grade 2 Workbook Answer Key Chapter 3 Practice 9 Subtraction Across Zeros to finish your assignments.

## Math in Focus Grade 2 Chapter 3 Practice 9 Answer Key Subtraction Across Zeros

**Regroup.**

**Then subtract.**

Question 1.

200 – 45 = ?

200 = 2 hundreds

= 1 hundred _________ tens

= 1 hundred ________ tens 10 ones

200 – 45= _______

Use addition to check your answer.

Answer:

200-45 = 155.

155+45 = 200.

Explanation:

Here, 200-45 is 155. As

200 = 2 hundreds

= 1 hundred 10 tens

= 1 hundred 9 tens 10 ones.

So 200-45 = 155.

Here, we will check the answer by using addition. So

155+45 = 200.

Question 2.

Answer:

400-99 = 301,

301+99 = 400.

Explanation:

The subtraction of 400-99 is 301. So to check the answer we will perform an addition which is 301+99 = 400.

Question 3.

Answer:

500-386 = 114,

114+386 = 500.

Explanation:

The subtraction of 500-386 is 114. So to check the answer we will perform an addition which is 114+386 = 500.

Question 4.

Answer:

800-779 = 21,

779+21 = 800.

Explanation:

The subtraction of 800-779 is 21. So to check the answer we will perform an addition which is 779+21 = 800.

Question 5.

Answer:

600-216 = 384,

384+216 = 600.

Explanation:

The subtraction of 600-216 is 384. So to check the answer we will perform an addition which is 384+216 = 600.

Question 7.

900 – 789 = ___

Answer:

900-789 = 111,

111+789 = 900.

Explanation:

The subtraction of 900-789 is 111. So to check the answer we will perform an addition which is 111+789 = 900.

**Solve.**

**Show how to check your answer.**

Question 8.

700 children enter an art contest. 98 of them win a prize. How many children do not win a prize?

____ children do not win a prize.

Answer:

602 children do not win a prize.

Explanation:

Given that 700 children enter an art contest and 98 of them win a prize. So the number of children who do not win a prize is 700-98 which is 602 children.

Question 9.

The library needs to order 600 books. It has ordered 263 books. How many more books does the library still need to order?

The library still needs to order ___ more books.

Answer:

The library still needs to order 337 more books.

Explanation:

Given that the library needs to order 600 books and it has ordered 263 books. So the number of books does the library still needs to order is 600-263 which is 337 books.

Question 10.

500 adults are at a concert. 291 of them are women. How many men are at the concert?

There are ___ men at the concert.

Answer:

There are 209 men at the concert.

Explanation:

Given thatÂ 500 adults are at a concert and 291 of them are women. So the number of men are at the concert is 500-291 which is 209 men.