Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 57 − 39 by rounding each number to the nearest 10: ______
- Estimate 59 + 49 by rounding each number to the nearest 10: ______
- Estimate 58 − 84 by rounding each number to the nearest 10: ______
- Estimate 59 − 54 by rounding each number to the nearest 10: ______
- Estimate 53 + 54 by rounding each number to the nearest 10: ______
- Estimate 72 + 84 by rounding each number to the nearest 10: ______
- Estimate 76 + 47 by rounding each number to the nearest 10: ______
- Estimate 34 + 80 by rounding each number to the nearest 10: ______
- Estimate 51 − 54 by rounding each number to the nearest 10: ______
- Estimate 36 − 51 by rounding each number to the nearest 10: ______
- Estimate 30 − 35 by rounding each number to the nearest 10: ______
- Estimate 40 + 48 by rounding each number to the nearest 10: ______
- Estimate 28 + 83 by rounding each number to the nearest 10: ______
- Estimate 86 + 77 by rounding each number to the nearest 10: ______
- Estimate 87 + 80 by rounding each number to the nearest 10: ______
- Estimate 50 − 50 by rounding each number to the nearest 10: ______
- Estimate 58 + 89 by rounding each number to the nearest 10: ______
- Estimate 89 − 28 by rounding each number to the nearest 10: ______
- Estimate 37 − 64 by rounding each number to the nearest 10: ______
- Estimate 38 + 68 by rounding each number to the nearest 10: ______