Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 86 − 46 by rounding each number to the nearest 10: ______
- Estimate 54 + 79 by rounding each number to the nearest 10: ______
- Estimate 79 − 77 by rounding each number to the nearest 10: ______
- Estimate 33 + 27 by rounding each number to the nearest 10: ______
- Estimate 68 − 57 by rounding each number to the nearest 10: ______
- Estimate 80 − 58 by rounding each number to the nearest 10: ______
- Estimate 39 − 84 by rounding each number to the nearest 10: ______
- Estimate 69 + 39 by rounding each number to the nearest 10: ______
- Estimate 35 − 39 by rounding each number to the nearest 10: ______
- Estimate 46 − 42 by rounding each number to the nearest 10: ______
- Estimate 52 + 62 by rounding each number to the nearest 10: ______
- Estimate 21 + 70 by rounding each number to the nearest 10: ______
- Estimate 58 − 68 by rounding each number to the nearest 10: ______
- Estimate 36 + 26 by rounding each number to the nearest 10: ______
- Estimate 25 + 87 by rounding each number to the nearest 10: ______
- Estimate 62 + 80 by rounding each number to the nearest 10: ______
- Estimate 54 − 81 by rounding each number to the nearest 10: ______
- Estimate 79 − 83 by rounding each number to the nearest 10: ______
- Estimate 34 − 78 by rounding each number to the nearest 10: ______
- Estimate 43 − 46 by rounding each number to the nearest 10: ______