Estimate sums and differences
3rd grade (Year 4 in England) · 16 questions · Common Core: 3.OA.D.8, 3.NBT.A.1 · England: Y3 Addition and subtraction, Y4 Addition and subtraction
Name
Date
Score/ 16
Question 1
Estimate 210 + 545 by rounding each number to the nearest hundred first.
Answer
Question 2
Arjun wants to estimate 809 + 468. Which is the best estimate?
- A. 1200
- B. 130
- C. 1400
- D. 1300
Question 3
Estimate 114 + 155 by rounding each number to the nearest hundred first.
Answer
Question 4
Priya wants to estimate 529 − 223. Which is the best estimate?
- A. 300
- B. 1300
- C. 30
- D. 400
Question 5
Estimate 354 + 553 by rounding each number to the nearest hundred first.
Answer
Question 6
Sam wants to estimate 727 + 332. Which is the best estimate?
- A. 2000
- B. 1100
- C. 900
- D. 1000
Question 7
Estimate 611 + 731 by rounding each number to the nearest hundred first.
Answer
Question 8
Ben wants to estimate 845 + 420. Which is the best estimate?
- A. 1200
- B. 1300
- C. 120
- D. 2200
Question 9
Estimate 741 + 484 by rounding each number to the nearest hundred first.
Answer
Question 10
Leo wants to estimate 769 + 431. Which is the best estimate?
- A. 1300
- B. 1200
- C. 120
- D. 2200
Question 11
Estimate 787 + 153 by rounding each number to the nearest hundred first.
Answer
Question 12
Lucia wants to estimate 676 − 303. Which is the best estimate?
- A. 40
- B. 500
- C. 1400
- D. 400
Question 13
Estimate 294 + 692 by rounding each number to the nearest hundred first.
Answer
Question 14
Isla wants to estimate 720 − 332. Which is the best estimate?
- A. 500
- B. 300
- C. 1400
- D. 400
Question 15
Estimate 311 + 695 by rounding each number to the nearest hundred first.
Answer
Question 16
Zara wants to estimate 877 − 350. Which is the best estimate?
- A. 500
- B. 400
- C. 600
- D. 50
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