Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 + 79 by rounding each number to the nearest 10: ______
- Estimate 79 + 46 by rounding each number to the nearest 10: ______
- Estimate 76 + 33 by rounding each number to the nearest 10: ______
- Estimate 25 + 84 by rounding each number to the nearest 10: ______
- Estimate 48 − 86 by rounding each number to the nearest 10: ______
- Estimate 30 + 61 by rounding each number to the nearest 10: ______
- Estimate 31 − 45 by rounding each number to the nearest 10: ______
- Estimate 86 + 65 by rounding each number to the nearest 10: ______
- Estimate 53 + 62 by rounding each number to the nearest 10: ______
- Estimate 32 − 89 by rounding each number to the nearest 10: ______
- Estimate 31 − 23 by rounding each number to the nearest 10: ______
- Estimate 62 − 35 by rounding each number to the nearest 10: ______
- Estimate 49 − 51 by rounding each number to the nearest 10: ______
- Estimate 84 + 59 by rounding each number to the nearest 10: ______
- Estimate 50 − 64 by rounding each number to the nearest 10: ______
- Estimate 75 + 79 by rounding each number to the nearest 10: ______
- Estimate 72 − 62 by rounding each number to the nearest 10: ______
- Estimate 21 − 82 by rounding each number to the nearest 10: ______
- Estimate 25 − 37 by rounding each number to the nearest 10: ______
- Estimate 88 + 61 by rounding each number to the nearest 10: ______