Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 22 + 26 by rounding each number to the nearest 10: ______
- Estimate 79 + 43 by rounding each number to the nearest 10: ______
- Estimate 38 + 70 by rounding each number to the nearest 10: ______
- Estimate 57 + 84 by rounding each number to the nearest 10: ______
- Estimate 86 − 77 by rounding each number to the nearest 10: ______
- Estimate 62 − 47 by rounding each number to the nearest 10: ______
- Estimate 29 − 72 by rounding each number to the nearest 10: ______
- Estimate 68 − 68 by rounding each number to the nearest 10: ______
- Estimate 86 + 44 by rounding each number to the nearest 10: ______
- Estimate 86 − 59 by rounding each number to the nearest 10: ______
- Estimate 60 − 28 by rounding each number to the nearest 10: ______
- Estimate 44 + 38 by rounding each number to the nearest 10: ______
- Estimate 80 + 58 by rounding each number to the nearest 10: ______
- Estimate 36 + 36 by rounding each number to the nearest 10: ______
- Estimate 21 + 59 by rounding each number to the nearest 10: ______
- Estimate 31 + 57 by rounding each number to the nearest 10: ______
- Estimate 85 − 29 by rounding each number to the nearest 10: ______
- Estimate 86 − 35 by rounding each number to the nearest 10: ______
- Estimate 64 + 77 by rounding each number to the nearest 10: ______
- Estimate 47 + 79 by rounding each number to the nearest 10: ______