Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 85 + 72 by rounding each number to the nearest 10: ______
- Estimate 83 − 68 by rounding each number to the nearest 10: ______
- Estimate 32 + 64 by rounding each number to the nearest 10: ______
- Estimate 51 − 57 by rounding each number to the nearest 10: ______
- Estimate 36 + 21 by rounding each number to the nearest 10: ______
- Estimate 85 − 22 by rounding each number to the nearest 10: ______
- Estimate 33 + 21 by rounding each number to the nearest 10: ______
- Estimate 63 − 51 by rounding each number to the nearest 10: ______
- Estimate 79 − 46 by rounding each number to the nearest 10: ______
- Estimate 58 − 38 by rounding each number to the nearest 10: ______
- Estimate 44 + 62 by rounding each number to the nearest 10: ______
- Estimate 23 + 52 by rounding each number to the nearest 10: ______
- Estimate 65 − 48 by rounding each number to the nearest 10: ______
- Estimate 41 + 70 by rounding each number to the nearest 10: ______
- Estimate 87 + 30 by rounding each number to the nearest 10: ______
- Estimate 26 − 40 by rounding each number to the nearest 10: ______
- Estimate 76 − 35 by rounding each number to the nearest 10: ______
- Estimate 24 − 31 by rounding each number to the nearest 10: ______
- Estimate 23 − 29 by rounding each number to the nearest 10: ______
- Estimate 45 − 79 by rounding each number to the nearest 10: ______