Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 54 + 24 by rounding each number to the nearest 10: ______
- Estimate 81 − 57 by rounding each number to the nearest 10: ______
- Estimate 59 + 50 by rounding each number to the nearest 10: ______
- Estimate 79 − 45 by rounding each number to the nearest 10: ______
- Estimate 35 + 22 by rounding each number to the nearest 10: ______
- Estimate 70 + 25 by rounding each number to the nearest 10: ______
- Estimate 61 + 34 by rounding each number to the nearest 10: ______
- Estimate 57 + 75 by rounding each number to the nearest 10: ______
- Estimate 60 − 32 by rounding each number to the nearest 10: ______
- Estimate 31 − 59 by rounding each number to the nearest 10: ______
- Estimate 28 + 76 by rounding each number to the nearest 10: ______
- Estimate 68 + 83 by rounding each number to the nearest 10: ______
- Estimate 40 + 41 by rounding each number to the nearest 10: ______
- Estimate 45 − 55 by rounding each number to the nearest 10: ______
- Estimate 69 + 27 by rounding each number to the nearest 10: ______
- Estimate 86 − 84 by rounding each number to the nearest 10: ______
- Estimate 44 + 64 by rounding each number to the nearest 10: ______
- Estimate 58 + 64 by rounding each number to the nearest 10: ______
- Estimate 81 − 52 by rounding each number to the nearest 10: ______
- Estimate 86 + 79 by rounding each number to the nearest 10: ______