Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 70 − 80 by rounding each number to the nearest 10: ______
- Estimate 21 + 55 by rounding each number to the nearest 10: ______
- Estimate 38 − 63 by rounding each number to the nearest 10: ______
- Estimate 68 − 35 by rounding each number to the nearest 10: ______
- Estimate 64 + 51 by rounding each number to the nearest 10: ______
- Estimate 58 − 42 by rounding each number to the nearest 10: ______
- Estimate 49 − 49 by rounding each number to the nearest 10: ______
- Estimate 54 + 70 by rounding each number to the nearest 10: ______
- Estimate 89 + 73 by rounding each number to the nearest 10: ______
- Estimate 55 − 41 by rounding each number to the nearest 10: ______
- Estimate 69 − 55 by rounding each number to the nearest 10: ______
- Estimate 60 − 22 by rounding each number to the nearest 10: ______
- Estimate 81 − 58 by rounding each number to the nearest 10: ______
- Estimate 57 − 34 by rounding each number to the nearest 10: ______
- Estimate 62 + 21 by rounding each number to the nearest 10: ______
- Estimate 29 − 52 by rounding each number to the nearest 10: ______
- Estimate 72 − 60 by rounding each number to the nearest 10: ______
- Estimate 56 + 23 by rounding each number to the nearest 10: ______
- Estimate 41 + 87 by rounding each number to the nearest 10: ______
- Estimate 38 − 71 by rounding each number to the nearest 10: ______