Estimate Sums and Differences
Grade 3 - Math - Building Confidence
Round 85 and 29 to the nearest ten. What is their estimated sum?
Round each number to the nearest ten. Which is the best estimate for 23 + 62?
- 82
- 70
- 80
- 100
Which two rounded numbers should you add to estimate 71 + 48 to the nearest ten?
- 70 and 40
- 70 and 50
- 60 and 50
- 70 and 60
A store has 44 apples and receives 61 more apples. Round each number to the nearest ten. About how many apples are there now?
Round 51 and 76 to the nearest ten. What is their estimated sum?
Round each number to the nearest ten. Which is the best estimate for 16 + 57?
- 100
- 90
- 77
- 80
Which two rounded numbers should you subtract to estimate 53 - 31 to the nearest ten?
- 50 and 30
- 50 and 40
- 60 and 40
- 40 and 30
A library had 88 books. It gave away 28 books. Round each number to the nearest ten. About how many books are left?
Round 69 and 67 to the nearest ten. What is their estimated sum?
Round each number to the nearest ten. Which is the best estimate for 55 - 18?
- 50
- 42
- 60
- 40