Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 38 − 80 by rounding each number to the nearest 10: ______
- Estimate 63 − 56 by rounding each number to the nearest 10: ______
- Estimate 53 − 39 by rounding each number to the nearest 10: ______
- Estimate 22 + 76 by rounding each number to the nearest 10: ______
- Estimate 60 − 78 by rounding each number to the nearest 10: ______
- Estimate 25 + 51 by rounding each number to the nearest 10: ______
- Estimate 35 + 72 by rounding each number to the nearest 10: ______
- Estimate 46 + 62 by rounding each number to the nearest 10: ______
- Estimate 63 − 40 by rounding each number to the nearest 10: ______
- Estimate 21 − 57 by rounding each number to the nearest 10: ______
- Estimate 89 − 86 by rounding each number to the nearest 10: ______
- Estimate 68 + 79 by rounding each number to the nearest 10: ______
- Estimate 79 + 42 by rounding each number to the nearest 10: ______
- Estimate 32 − 30 by rounding each number to the nearest 10: ______
- Estimate 23 − 57 by rounding each number to the nearest 10: ______
- Estimate 57 − 21 by rounding each number to the nearest 10: ______
- Estimate 42 + 64 by rounding each number to the nearest 10: ______
- Estimate 39 + 38 by rounding each number to the nearest 10: ______
- Estimate 48 + 77 by rounding each number to the nearest 10: ______
- Estimate 53 − 54 by rounding each number to the nearest 10: ______