Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 − 78 by rounding each number to the nearest 10: ______
- Estimate 32 + 87 by rounding each number to the nearest 10: ______
- Estimate 72 − 43 by rounding each number to the nearest 10: ______
- Estimate 49 − 70 by rounding each number to the nearest 10: ______
- Estimate 58 − 46 by rounding each number to the nearest 10: ______
- Estimate 38 − 38 by rounding each number to the nearest 10: ______
- Estimate 31 − 51 by rounding each number to the nearest 10: ______
- Estimate 22 + 46 by rounding each number to the nearest 10: ______
- Estimate 67 − 86 by rounding each number to the nearest 10: ______
- Estimate 62 + 64 by rounding each number to the nearest 10: ______
- Estimate 39 + 84 by rounding each number to the nearest 10: ______
- Estimate 88 − 53 by rounding each number to the nearest 10: ______
- Estimate 58 − 27 by rounding each number to the nearest 10: ______
- Estimate 89 − 79 by rounding each number to the nearest 10: ______
- Estimate 81 + 44 by rounding each number to the nearest 10: ______
- Estimate 30 + 73 by rounding each number to the nearest 10: ______
- Estimate 41 + 54 by rounding each number to the nearest 10: ______
- Estimate 87 + 23 by rounding each number to the nearest 10: ______
- Estimate 79 + 45 by rounding each number to the nearest 10: ______
- Estimate 40 − 82 by rounding each number to the nearest 10: ______