Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 65 − 60 by rounding each number to the nearest 10: ______
- Estimate 51 + 21 by rounding each number to the nearest 10: ______
- Estimate 77 − 87 by rounding each number to the nearest 10: ______
- Estimate 48 + 69 by rounding each number to the nearest 10: ______
- Estimate 80 + 76 by rounding each number to the nearest 10: ______
- Estimate 39 + 39 by rounding each number to the nearest 10: ______
- Estimate 27 − 75 by rounding each number to the nearest 10: ______
- Estimate 89 − 67 by rounding each number to the nearest 10: ______
- Estimate 78 − 49 by rounding each number to the nearest 10: ______
- Estimate 63 − 65 by rounding each number to the nearest 10: ______
- Estimate 35 + 68 by rounding each number to the nearest 10: ______
- Estimate 75 − 41 by rounding each number to the nearest 10: ______
- Estimate 76 − 21 by rounding each number to the nearest 10: ______
- Estimate 26 + 88 by rounding each number to the nearest 10: ______
- Estimate 40 + 32 by rounding each number to the nearest 10: ______
- Estimate 43 + 76 by rounding each number to the nearest 10: ______
- Estimate 51 − 29 by rounding each number to the nearest 10: ______
- Estimate 44 − 79 by rounding each number to the nearest 10: ______
- Estimate 63 + 48 by rounding each number to the nearest 10: ______
- Estimate 53 − 85 by rounding each number to the nearest 10: ______