Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 45 + 59 by rounding each number to the nearest 10: ______
- Estimate 85 + 79 by rounding each number to the nearest 10: ______
- Estimate 56 − 43 by rounding each number to the nearest 10: ______
- Estimate 63 − 35 by rounding each number to the nearest 10: ______
- Estimate 84 − 70 by rounding each number to the nearest 10: ______
- Estimate 86 − 85 by rounding each number to the nearest 10: ______
- Estimate 64 + 27 by rounding each number to the nearest 10: ______
- Estimate 25 − 31 by rounding each number to the nearest 10: ______
- Estimate 34 + 73 by rounding each number to the nearest 10: ______
- Estimate 62 + 58 by rounding each number to the nearest 10: ______
- Estimate 64 − 59 by rounding each number to the nearest 10: ______
- Estimate 45 + 31 by rounding each number to the nearest 10: ______
- Estimate 61 − 80 by rounding each number to the nearest 10: ______
- Estimate 60 − 42 by rounding each number to the nearest 10: ______
- Estimate 62 − 22 by rounding each number to the nearest 10: ______
- Estimate 65 − 27 by rounding each number to the nearest 10: ______
- Estimate 34 − 41 by rounding each number to the nearest 10: ______
- Estimate 50 − 72 by rounding each number to the nearest 10: ______
- Estimate 89 − 50 by rounding each number to the nearest 10: ______
- Estimate 72 + 50 by rounding each number to the nearest 10: ______