Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 57 + 59 by rounding each number to the nearest 10: ______
- Estimate 60 + 25 by rounding each number to the nearest 10: ______
- Estimate 86 + 29 by rounding each number to the nearest 10: ______
- Estimate 69 + 79 by rounding each number to the nearest 10: ______
- Estimate 83 + 79 by rounding each number to the nearest 10: ______
- Estimate 59 − 57 by rounding each number to the nearest 10: ______
- Estimate 47 + 52 by rounding each number to the nearest 10: ______
- Estimate 26 + 27 by rounding each number to the nearest 10: ______
- Estimate 66 + 64 by rounding each number to the nearest 10: ______
- Estimate 71 + 28 by rounding each number to the nearest 10: ______
- Estimate 61 − 32 by rounding each number to the nearest 10: ______
- Estimate 35 − 49 by rounding each number to the nearest 10: ______
- Estimate 77 + 38 by rounding each number to the nearest 10: ______
- Estimate 38 + 89 by rounding each number to the nearest 10: ______
- Estimate 39 − 74 by rounding each number to the nearest 10: ______
- Estimate 79 − 49 by rounding each number to the nearest 10: ______
- Estimate 46 − 31 by rounding each number to the nearest 10: ______
- Estimate 37 + 82 by rounding each number to the nearest 10: ______
- Estimate 50 − 51 by rounding each number to the nearest 10: ______
- Estimate 36 − 25 by rounding each number to the nearest 10: ______