Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 58 by rounding each number to the nearest 10: ______
- Estimate 82 − 48 by rounding each number to the nearest 10: ______
- Estimate 22 − 65 by rounding each number to the nearest 10: ______
- Estimate 83 − 44 by rounding each number to the nearest 10: ______
- Estimate 32 − 84 by rounding each number to the nearest 10: ______
- Estimate 34 − 54 by rounding each number to the nearest 10: ______
- Estimate 74 + 87 by rounding each number to the nearest 10: ______
- Estimate 77 − 25 by rounding each number to the nearest 10: ______
- Estimate 68 + 40 by rounding each number to the nearest 10: ______
- Estimate 72 + 27 by rounding each number to the nearest 10: ______
- Estimate 22 + 43 by rounding each number to the nearest 10: ______
- Estimate 81 + 86 by rounding each number to the nearest 10: ______
- Estimate 59 − 75 by rounding each number to the nearest 10: ______
- Estimate 88 + 70 by rounding each number to the nearest 10: ______
- Estimate 52 + 51 by rounding each number to the nearest 10: ______
- Estimate 28 + 34 by rounding each number to the nearest 10: ______
- Estimate 24 − 45 by rounding each number to the nearest 10: ______
- Estimate 75 − 43 by rounding each number to the nearest 10: ______
- Estimate 65 + 33 by rounding each number to the nearest 10: ______
- Estimate 51 + 66 by rounding each number to the nearest 10: ______