Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 − 27 by rounding each number to the nearest 10: ______
- Estimate 56 − 23 by rounding each number to the nearest 10: ______
- Estimate 48 − 49 by rounding each number to the nearest 10: ______
- Estimate 39 − 29 by rounding each number to the nearest 10: ______
- Estimate 32 + 39 by rounding each number to the nearest 10: ______
- Estimate 39 + 33 by rounding each number to the nearest 10: ______
- Estimate 80 + 49 by rounding each number to the nearest 10: ______
- Estimate 84 + 25 by rounding each number to the nearest 10: ______
- Estimate 52 + 69 by rounding each number to the nearest 10: ______
- Estimate 74 − 37 by rounding each number to the nearest 10: ______
- Estimate 29 + 64 by rounding each number to the nearest 10: ______
- Estimate 82 + 78 by rounding each number to the nearest 10: ______
- Estimate 84 − 24 by rounding each number to the nearest 10: ______
- Estimate 51 − 31 by rounding each number to the nearest 10: ______
- Estimate 88 − 44 by rounding each number to the nearest 10: ______
- Estimate 59 − 72 by rounding each number to the nearest 10: ______
- Estimate 43 − 59 by rounding each number to the nearest 10: ______
- Estimate 32 − 28 by rounding each number to the nearest 10: ______
- Estimate 45 − 82 by rounding each number to the nearest 10: ______
- Estimate 33 + 70 by rounding each number to the nearest 10: ______