Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 70 by rounding each number to the nearest 10: ______
- Estimate 77 − 30 by rounding each number to the nearest 10: ______
- Estimate 26 − 35 by rounding each number to the nearest 10: ______
- Estimate 77 + 26 by rounding each number to the nearest 10: ______
- Estimate 44 − 87 by rounding each number to the nearest 10: ______
- Estimate 56 − 33 by rounding each number to the nearest 10: ______
- Estimate 69 + 62 by rounding each number to the nearest 10: ______
- Estimate 58 − 72 by rounding each number to the nearest 10: ______
- Estimate 81 − 54 by rounding each number to the nearest 10: ______
- Estimate 84 + 33 by rounding each number to the nearest 10: ______
- Estimate 89 − 63 by rounding each number to the nearest 10: ______
- Estimate 77 − 69 by rounding each number to the nearest 10: ______
- Estimate 56 − 86 by rounding each number to the nearest 10: ______
- Estimate 50 − 60 by rounding each number to the nearest 10: ______
- Estimate 26 + 22 by rounding each number to the nearest 10: ______
- Estimate 59 + 39 by rounding each number to the nearest 10: ______
- Estimate 31 + 89 by rounding each number to the nearest 10: ______
- Estimate 55 − 28 by rounding each number to the nearest 10: ______
- Estimate 41 − 36 by rounding each number to the nearest 10: ______
- Estimate 65 + 32 by rounding each number to the nearest 10: ______