Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 77 − 83 by rounding each number to the nearest 10: ______
- Estimate 22 + 39 by rounding each number to the nearest 10: ______
- Estimate 71 + 89 by rounding each number to the nearest 10: ______
- Estimate 67 − 66 by rounding each number to the nearest 10: ______
- Estimate 81 − 88 by rounding each number to the nearest 10: ______
- Estimate 81 + 46 by rounding each number to the nearest 10: ______
- Estimate 84 − 39 by rounding each number to the nearest 10: ______
- Estimate 38 − 62 by rounding each number to the nearest 10: ______
- Estimate 81 + 30 by rounding each number to the nearest 10: ______
- Estimate 83 + 44 by rounding each number to the nearest 10: ______
- Estimate 46 − 35 by rounding each number to the nearest 10: ______
- Estimate 33 + 66 by rounding each number to the nearest 10: ______
- Estimate 37 − 51 by rounding each number to the nearest 10: ______
- Estimate 42 − 73 by rounding each number to the nearest 10: ______
- Estimate 43 + 84 by rounding each number to the nearest 10: ______
- Estimate 78 + 64 by rounding each number to the nearest 10: ______
- Estimate 61 − 86 by rounding each number to the nearest 10: ______
- Estimate 48 − 24 by rounding each number to the nearest 10: ______
- Estimate 40 − 51 by rounding each number to the nearest 10: ______
- Estimate 69 − 23 by rounding each number to the nearest 10: ______