Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 56 − 34 by rounding each number to the nearest 10: ______
- Estimate 77 − 86 by rounding each number to the nearest 10: ______
- Estimate 78 + 40 by rounding each number to the nearest 10: ______
- Estimate 51 − 25 by rounding each number to the nearest 10: ______
- Estimate 75 + 54 by rounding each number to the nearest 10: ______
- Estimate 49 − 58 by rounding each number to the nearest 10: ______
- Estimate 68 − 65 by rounding each number to the nearest 10: ______
- Estimate 54 − 89 by rounding each number to the nearest 10: ______
- Estimate 50 + 78 by rounding each number to the nearest 10: ______
- Estimate 70 + 55 by rounding each number to the nearest 10: ______
- Estimate 25 − 81 by rounding each number to the nearest 10: ______
- Estimate 42 − 23 by rounding each number to the nearest 10: ______
- Estimate 44 − 64 by rounding each number to the nearest 10: ______
- Estimate 51 − 72 by rounding each number to the nearest 10: ______
- Estimate 81 − 57 by rounding each number to the nearest 10: ______
- Estimate 38 − 29 by rounding each number to the nearest 10: ______
- Estimate 61 + 87 by rounding each number to the nearest 10: ______
- Estimate 56 − 62 by rounding each number to the nearest 10: ______
- Estimate 46 + 42 by rounding each number to the nearest 10: ______
- Estimate 68 − 31 by rounding each number to the nearest 10: ______