Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 71 by rounding each number to the nearest 10: ______
- Estimate 85 + 29 by rounding each number to the nearest 10: ______
- Estimate 48 − 47 by rounding each number to the nearest 10: ______
- Estimate 61 − 31 by rounding each number to the nearest 10: ______
- Estimate 79 − 34 by rounding each number to the nearest 10: ______
- Estimate 32 − 64 by rounding each number to the nearest 10: ______
- Estimate 69 + 56 by rounding each number to the nearest 10: ______
- Estimate 89 − 55 by rounding each number to the nearest 10: ______
- Estimate 72 + 43 by rounding each number to the nearest 10: ______
- Estimate 68 + 34 by rounding each number to the nearest 10: ______
- Estimate 67 − 54 by rounding each number to the nearest 10: ______
- Estimate 62 + 34 by rounding each number to the nearest 10: ______
- Estimate 71 − 47 by rounding each number to the nearest 10: ______
- Estimate 22 + 45 by rounding each number to the nearest 10: ______
- Estimate 25 − 86 by rounding each number to the nearest 10: ______
- Estimate 21 − 85 by rounding each number to the nearest 10: ______
- Estimate 88 − 44 by rounding each number to the nearest 10: ______
- Estimate 85 + 38 by rounding each number to the nearest 10: ______
- Estimate 47 − 43 by rounding each number to the nearest 10: ______
- Estimate 22 − 74 by rounding each number to the nearest 10: ______