Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 62 + 65 by rounding each number to the nearest 10: ______
- Estimate 64 + 52 by rounding each number to the nearest 10: ______
- Estimate 40 + 62 by rounding each number to the nearest 10: ______
- Estimate 84 + 79 by rounding each number to the nearest 10: ______
- Estimate 49 + 50 by rounding each number to the nearest 10: ______
- Estimate 35 − 85 by rounding each number to the nearest 10: ______
- Estimate 49 − 66 by rounding each number to the nearest 10: ______
- Estimate 42 + 89 by rounding each number to the nearest 10: ______
- Estimate 82 + 85 by rounding each number to the nearest 10: ______
- Estimate 71 − 37 by rounding each number to the nearest 10: ______
- Estimate 54 + 31 by rounding each number to the nearest 10: ______
- Estimate 59 + 38 by rounding each number to the nearest 10: ______
- Estimate 21 − 41 by rounding each number to the nearest 10: ______
- Estimate 34 − 54 by rounding each number to the nearest 10: ______
- Estimate 68 − 65 by rounding each number to the nearest 10: ______
- Estimate 29 + 74 by rounding each number to the nearest 10: ______
- Estimate 71 − 74 by rounding each number to the nearest 10: ______
- Estimate 80 + 26 by rounding each number to the nearest 10: ______
- Estimate 44 + 44 by rounding each number to the nearest 10: ______
- Estimate 86 − 25 by rounding each number to the nearest 10: ______