Grade 4 Math Practice Test: Adding and Subtracting Multi-Digit Numbers
- Adding and Subtracting Multi-Digit Numbers
- 10 questions
- 12 minutes
These 10 questions practice adding and subtracting numbers up to the hundred thousands. Tip: line up the digits by place value and check a subtraction by adding the answer back.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
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Question 1
What is 4,587 + 3,698?
Correct answer: D
7 + 8 = 15, write 5 and carry 1; 8 + 9 + 1 = 18, write 8 and carry 1; 5 + 6 + 1 = 12, write 2 and carry 1; 4 + 3 + 1 = 8. The sum is 8,285. 7,185 forgets every carry.
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Question 2
What is 9,002 − 3,547?
Correct answer: D
Regroup across the zeros: 9,002 − 3,547 = 5,455. Check: 5,455 + 3,547 = 9,002. 6,545 comes from subtracting the smaller digit from the larger one in each place.
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Question 3
What is 36,409 + 27,856?
Correct answer: B
Adding place by place with carrying gives 64,265. 63,265 forgets the carry from the hundreds into the thousands.
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Question 4
What is 70,000 − 28,365?
Correct answer: C
Regroup across the zeros: 70,000 − 28,365 = 41,635. Check: 41,635 + 28,365 = 70,000. 42,635 forgets that a thousand was regrouped.
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Question 5
A stadium sold 15,280 tickets on Saturday and 12,945 tickets on Sunday. How many tickets did it sell on the two days?
Correct answer: C
Add: 15,280 + 12,945 = 28,225 tickets. 2,335 is the difference between the two days, but the question asks for the total.
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Question 6
A school library had 6,250 books. It gave away 1,875 old books. How many books does the library have now?
Correct answer: B
Subtract: 6,250 − 1,875 = 4,375 books. 8,125 adds the numbers, but books were given away.
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Question 7
What number goes in the box?
2,468 + ☐ = 5,000
Correct answer: A
Find the missing addend by subtracting: 5,000 − 2,468 = 2,532. Check: 2,468 + 2,532 = 5,000. 7,468 adds instead of subtracting.
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Question 8
Round each number to the nearest thousand to estimate 6,912 + 2,104. What is the estimate?
Correct answer: D
6,912 rounds to 7,000 and 2,104 rounds to 2,000, so the estimate is 7,000 + 2,000 = 9,000. 9,016 is the exact sum, not an estimate.
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Question 9
What is 125,630 + 48,275?
Correct answer: A
Adding place by place gives 173,905. Check by estimating: about 126,000 + 48,000 = 174,000, which is close.
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Question 10
Before a road trip, a car's odometer showed 23,418 miles. After the trip it showed 24,075 miles. How many miles long was the trip?
Correct answer: A
The trip length is the difference: 24,075 − 23,418 = 657 miles. 47,493 adds the two readings, which makes no sense here.
Questions you leave blank are not counted as wrong.
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