Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 + 86 by rounding each number to the nearest 10: ______
- Estimate 32 − 85 by rounding each number to the nearest 10: ______
- Estimate 89 + 23 by rounding each number to the nearest 10: ______
- Estimate 45 − 81 by rounding each number to the nearest 10: ______
- Estimate 34 + 24 by rounding each number to the nearest 10: ______
- Estimate 25 + 52 by rounding each number to the nearest 10: ______
- Estimate 59 − 56 by rounding each number to the nearest 10: ______
- Estimate 71 + 42 by rounding each number to the nearest 10: ______
- Estimate 82 − 55 by rounding each number to the nearest 10: ______
- Estimate 57 − 63 by rounding each number to the nearest 10: ______
- Estimate 44 − 38 by rounding each number to the nearest 10: ______
- Estimate 40 − 56 by rounding each number to the nearest 10: ______
- Estimate 54 − 71 by rounding each number to the nearest 10: ______
- Estimate 81 − 36 by rounding each number to the nearest 10: ______
- Estimate 50 − 32 by rounding each number to the nearest 10: ______
- Estimate 21 − 55 by rounding each number to the nearest 10: ______
- Estimate 72 − 52 by rounding each number to the nearest 10: ______
- Estimate 77 + 27 by rounding each number to the nearest 10: ______
- Estimate 59 + 73 by rounding each number to the nearest 10: ______
- Estimate 42 − 49 by rounding each number to the nearest 10: ______