Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 28 − 37 by rounding each number to the nearest 10: ______
- Estimate 40 − 65 by rounding each number to the nearest 10: ______
- Estimate 71 − 44 by rounding each number to the nearest 10: ______
- Estimate 82 − 80 by rounding each number to the nearest 10: ______
- Estimate 52 + 62 by rounding each number to the nearest 10: ______
- Estimate 36 + 70 by rounding each number to the nearest 10: ______
- Estimate 63 + 66 by rounding each number to the nearest 10: ______
- Estimate 55 + 89 by rounding each number to the nearest 10: ______
- Estimate 50 + 35 by rounding each number to the nearest 10: ______
- Estimate 41 − 41 by rounding each number to the nearest 10: ______
- Estimate 81 − 73 by rounding each number to the nearest 10: ______
- Estimate 68 − 55 by rounding each number to the nearest 10: ______
- Estimate 35 + 64 by rounding each number to the nearest 10: ______
- Estimate 85 + 33 by rounding each number to the nearest 10: ______
- Estimate 76 + 22 by rounding each number to the nearest 10: ______
- Estimate 21 − 81 by rounding each number to the nearest 10: ______
- Estimate 38 + 55 by rounding each number to the nearest 10: ______
- Estimate 23 − 43 by rounding each number to the nearest 10: ______
- Estimate 21 + 75 by rounding each number to the nearest 10: ______
- Estimate 68 + 42 by rounding each number to the nearest 10: ______