Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 47 + 56 by rounding each number to the nearest 10: ______
- Estimate 86 − 67 by rounding each number to the nearest 10: ______
- Estimate 37 + 60 by rounding each number to the nearest 10: ______
- Estimate 27 − 78 by rounding each number to the nearest 10: ______
- Estimate 71 − 35 by rounding each number to the nearest 10: ______
- Estimate 23 + 86 by rounding each number to the nearest 10: ______
- Estimate 58 − 24 by rounding each number to the nearest 10: ______
- Estimate 43 + 74 by rounding each number to the nearest 10: ______
- Estimate 59 + 88 by rounding each number to the nearest 10: ______
- Estimate 32 − 35 by rounding each number to the nearest 10: ______
- Estimate 33 + 36 by rounding each number to the nearest 10: ______
- Estimate 26 + 65 by rounding each number to the nearest 10: ______
- Estimate 69 − 72 by rounding each number to the nearest 10: ______
- Estimate 60 + 25 by rounding each number to the nearest 10: ______
- Estimate 85 − 32 by rounding each number to the nearest 10: ______
- Estimate 37 + 38 by rounding each number to the nearest 10: ______
- Estimate 78 − 49 by rounding each number to the nearest 10: ______
- Estimate 38 + 35 by rounding each number to the nearest 10: ______
- Estimate 87 − 43 by rounding each number to the nearest 10: ______
- Estimate 59 − 34 by rounding each number to the nearest 10: ______