Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 87 − 72 by rounding each number to the nearest 10: ______
- Estimate 63 − 37 by rounding each number to the nearest 10: ______
- Estimate 53 − 63 by rounding each number to the nearest 10: ______
- Estimate 85 + 34 by rounding each number to the nearest 10: ______
- Estimate 26 + 57 by rounding each number to the nearest 10: ______
- Estimate 45 − 40 by rounding each number to the nearest 10: ______
- Estimate 42 − 33 by rounding each number to the nearest 10: ______
- Estimate 39 − 28 by rounding each number to the nearest 10: ______
- Estimate 83 − 38 by rounding each number to the nearest 10: ______
- Estimate 70 + 47 by rounding each number to the nearest 10: ______
- Estimate 36 + 38 by rounding each number to the nearest 10: ______
- Estimate 40 + 70 by rounding each number to the nearest 10: ______
- Estimate 78 + 86 by rounding each number to the nearest 10: ______
- Estimate 56 − 27 by rounding each number to the nearest 10: ______
- Estimate 57 − 69 by rounding each number to the nearest 10: ______
- Estimate 27 − 23 by rounding each number to the nearest 10: ______
- Estimate 79 − 72 by rounding each number to the nearest 10: ______
- Estimate 87 + 22 by rounding each number to the nearest 10: ______
- Estimate 28 − 76 by rounding each number to the nearest 10: ______
- Estimate 54 − 22 by rounding each number to the nearest 10: ______