Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 85 − 55 by rounding each number to the nearest 10: ______
- Estimate 27 + 33 by rounding each number to the nearest 10: ______
- Estimate 24 + 84 by rounding each number to the nearest 10: ______
- Estimate 39 − 23 by rounding each number to the nearest 10: ______
- Estimate 64 + 80 by rounding each number to the nearest 10: ______
- Estimate 85 − 51 by rounding each number to the nearest 10: ______
- Estimate 52 + 34 by rounding each number to the nearest 10: ______
- Estimate 86 − 57 by rounding each number to the nearest 10: ______
- Estimate 83 + 56 by rounding each number to the nearest 10: ______
- Estimate 48 − 69 by rounding each number to the nearest 10: ______
- Estimate 40 − 87 by rounding each number to the nearest 10: ______
- Estimate 29 + 28 by rounding each number to the nearest 10: ______
- Estimate 73 − 55 by rounding each number to the nearest 10: ______
- Estimate 25 + 49 by rounding each number to the nearest 10: ______
- Estimate 83 − 70 by rounding each number to the nearest 10: ______
- Estimate 38 − 69 by rounding each number to the nearest 10: ______
- Estimate 64 + 66 by rounding each number to the nearest 10: ______
- Estimate 61 − 52 by rounding each number to the nearest 10: ______
- Estimate 52 + 48 by rounding each number to the nearest 10: ______
- Estimate 47 + 44 by rounding each number to the nearest 10: ______