Envision Math 4th Grade Textbook Answer Key Topic 2.8 Subtracting Across Zeros

Subtracting Across Zeros

How do you subtract across zeros?

An airplane flight to Chicago has seats for 300 passengers. The airline sold 278 tickets for the flight. How many seats are still available for the flight?
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 1

Guided Practice*

In 1 through 6, subtract.

Question 1.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 2
Answer:

Question 2.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 3
Answer:

Question 3.
810 – 638
Answer:

Question 4.
3,304 – 1,137
Answer:

Question 5.
1,001 – 868
Answer:

Question 6.
4,000 – 1,698
Answer:

Question 7.
How would you check if the answer in the example above is correct?
Answer:

Question 8.
One passenger flew from New York to Phoenix. The flight was 2,145 miles. Another passenger flew from Boston to Seattle. The flight
was 2,496 miles. How many more miles was the flight to Seattle? In 9 through 28, subtract.

Question 9.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 20
Answer:

Question 10.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 21
Answer:

Question 11.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 22
Answer:

Question 12.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 23
Answer:

Question 13.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 24
Answer:

Question 14.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 25
Answer:

Question 15.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 26
Answer:

Question 16.
Envision Math 4th Grade Textbook Answers Topic 2.8 Subtracting Across Zeros 27
Answer:

Question 17.
450 – 313
Answer:

Question 18.
5,025 – 178
Answer:

Question 19.
406 – 381
Answer:

Question 20.
6,090 – 5,130
Answer:

Question 21.
1,001 – 35
Answer:

Question 22.
900 – 406
Answer:

Question 23.
504 – 319
Answer:

Question 24.
10,807 – 4,373
Answer:

Question 25.
3,000 – 1,047
Answer:

Question 26.
5,001 – 368
Answer:

Question 27.
700 – 520
Answer:

Question 28.
2,700 – 1,699
Answer:

One Way

Find 300 – 278.
Estimate: 300 – 280 = 20
Regroup hundreds to tens and tens to ones.
Envision Math 4th Grade Textbook Answer Key Topic 2.8 Subtracting Across Zeros 25
There are 22 seats available for the flight.

Another way
Find 300 – 278.
Estimate: 300 – 280 = 20
Think of 300 as 30 tens and 0 ones
Envision Math 4th Grade Textbook Answer Key Topic 2.8 Subtracting Across Zeros 26
There are 22 seats available for the flight.

Problem Solving

Question 29.
Shawn scored 10,830 points playing a video game. Miguel scored 9,645 points. How many more points did Shawn score than Miguel?
Answer:

Question 30.
Writing to Explain Will the difference between 4,041 and 3,876 be greater or less than 1,000? Explain your answer.
Answer:

Question 31.
Use the chart on the right. Music City sells CDs. Which of the following tells how many more Hip Hop CDs were sold than Latin CDs in April?
Envision Math 4th Grade Textbook Answer Key Topic 2.8 Subtracting Across Zeros 70
A. 887
B. 897
C. 7,090
D. 13,293
Answer:

Question 32.
William drove from Atlanta, Georgia, to Portland, Oregon. The round trip was 5,601 miles. He traveled 2,603 miles to get to Portland, Oregon, but he decided to take a different route back. How many miles did he travel to get back to Atlanta?
Answer:

Question 33.
On Thursday, 10,296 people attended a college basketball home game. The following week, 12,000 people attended an away game. How many more people attended the away game than the home game?
Envision Math 4th Grade Textbook Answer Key Topic 2.8 Subtracting Across Zeros 71
Answer:

Question 34.
In a dart game, Casey scored 42 points, and Maggie scored 28 points. Jesse scored fewer points than Casey but more points than
Maggie. Which is a possible score for Jesse?
A. 50 points
B. 46 points
C. 34 points
D. 26 points
CDs Sold in April
Answer:

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