Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 27 + 88 by rounding each number to the nearest 10: ______
- Estimate 30 − 71 by rounding each number to the nearest 10: ______
- Estimate 48 + 36 by rounding each number to the nearest 10: ______
- Estimate 56 + 57 by rounding each number to the nearest 10: ______
- Estimate 62 − 32 by rounding each number to the nearest 10: ______
- Estimate 83 + 38 by rounding each number to the nearest 10: ______
- Estimate 61 + 48 by rounding each number to the nearest 10: ______
- Estimate 52 − 24 by rounding each number to the nearest 10: ______
- Estimate 76 + 35 by rounding each number to the nearest 10: ______
- Estimate 57 − 88 by rounding each number to the nearest 10: ______
- Estimate 89 + 38 by rounding each number to the nearest 10: ______
- Estimate 28 − 86 by rounding each number to the nearest 10: ______
- Estimate 42 − 79 by rounding each number to the nearest 10: ______
- Estimate 69 + 79 by rounding each number to the nearest 10: ______
- Estimate 49 − 35 by rounding each number to the nearest 10: ______
- Estimate 32 + 80 by rounding each number to the nearest 10: ______
- Estimate 27 + 85 by rounding each number to the nearest 10: ______
- Estimate 55 − 29 by rounding each number to the nearest 10: ______
- Estimate 77 + 66 by rounding each number to the nearest 10: ______
- Estimate 55 − 54 by rounding each number to the nearest 10: ______