Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 63 + 81 by rounding each number to the nearest 10: ______
- Estimate 60 + 56 by rounding each number to the nearest 10: ______
- Estimate 25 − 80 by rounding each number to the nearest 10: ______
- Estimate 35 + 73 by rounding each number to the nearest 10: ______
- Estimate 62 + 48 by rounding each number to the nearest 10: ______
- Estimate 30 − 30 by rounding each number to the nearest 10: ______
- Estimate 74 − 65 by rounding each number to the nearest 10: ______
- Estimate 36 + 53 by rounding each number to the nearest 10: ______
- Estimate 45 + 41 by rounding each number to the nearest 10: ______
- Estimate 86 − 77 by rounding each number to the nearest 10: ______
- Estimate 88 − 85 by rounding each number to the nearest 10: ______
- Estimate 21 + 60 by rounding each number to the nearest 10: ______
- Estimate 70 − 77 by rounding each number to the nearest 10: ______
- Estimate 33 + 67 by rounding each number to the nearest 10: ______
- Estimate 71 + 43 by rounding each number to the nearest 10: ______
- Estimate 30 + 29 by rounding each number to the nearest 10: ______
- Estimate 70 + 69 by rounding each number to the nearest 10: ______
- Estimate 58 + 32 by rounding each number to the nearest 10: ______
- Estimate 68 + 70 by rounding each number to the nearest 10: ______
- Estimate 23 + 80 by rounding each number to the nearest 10: ______