Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 + 32 by rounding each number to the nearest 10: ______
- Estimate 65 + 39 by rounding each number to the nearest 10: ______
- Estimate 83 − 35 by rounding each number to the nearest 10: ______
- Estimate 64 + 30 by rounding each number to the nearest 10: ______
- Estimate 88 − 69 by rounding each number to the nearest 10: ______
- Estimate 39 − 29 by rounding each number to the nearest 10: ______
- Estimate 65 − 69 by rounding each number to the nearest 10: ______
- Estimate 63 + 27 by rounding each number to the nearest 10: ______
- Estimate 78 − 60 by rounding each number to the nearest 10: ______
- Estimate 64 + 88 by rounding each number to the nearest 10: ______
- Estimate 24 + 88 by rounding each number to the nearest 10: ______
- Estimate 52 − 35 by rounding each number to the nearest 10: ______
- Estimate 86 − 27 by rounding each number to the nearest 10: ______
- Estimate 71 + 80 by rounding each number to the nearest 10: ______
- Estimate 69 − 28 by rounding each number to the nearest 10: ______
- Estimate 42 + 56 by rounding each number to the nearest 10: ______
- Estimate 89 − 44 by rounding each number to the nearest 10: ______
- Estimate 61 − 80 by rounding each number to the nearest 10: ______
- Estimate 51 − 54 by rounding each number to the nearest 10: ______
- Estimate 49 + 42 by rounding each number to the nearest 10: ______