Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 − 40 by rounding each number to the nearest 10: ______
- Estimate 24 − 57 by rounding each number to the nearest 10: ______
- Estimate 60 + 58 by rounding each number to the nearest 10: ______
- Estimate 72 − 32 by rounding each number to the nearest 10: ______
- Estimate 66 + 77 by rounding each number to the nearest 10: ______
- Estimate 53 + 27 by rounding each number to the nearest 10: ______
- Estimate 29 + 41 by rounding each number to the nearest 10: ______
- Estimate 47 + 62 by rounding each number to the nearest 10: ______
- Estimate 40 + 77 by rounding each number to the nearest 10: ______
- Estimate 82 − 34 by rounding each number to the nearest 10: ______
- Estimate 79 − 45 by rounding each number to the nearest 10: ______
- Estimate 36 + 37 by rounding each number to the nearest 10: ______
- Estimate 41 + 83 by rounding each number to the nearest 10: ______
- Estimate 50 + 29 by rounding each number to the nearest 10: ______
- Estimate 81 − 32 by rounding each number to the nearest 10: ______
- Estimate 49 − 42 by rounding each number to the nearest 10: ______
- Estimate 52 + 36 by rounding each number to the nearest 10: ______
- Estimate 32 + 86 by rounding each number to the nearest 10: ______
- Estimate 64 − 25 by rounding each number to the nearest 10: ______
- Estimate 64 + 75 by rounding each number to the nearest 10: ______