Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 86 + 84 by rounding each number to the nearest 10: ______
- Estimate 83 − 77 by rounding each number to the nearest 10: ______
- Estimate 63 + 34 by rounding each number to the nearest 10: ______
- Estimate 49 + 26 by rounding each number to the nearest 10: ______
- Estimate 44 + 86 by rounding each number to the nearest 10: ______
- Estimate 42 + 70 by rounding each number to the nearest 10: ______
- Estimate 56 − 73 by rounding each number to the nearest 10: ______
- Estimate 69 − 82 by rounding each number to the nearest 10: ______
- Estimate 68 + 41 by rounding each number to the nearest 10: ______
- Estimate 47 − 79 by rounding each number to the nearest 10: ______
- Estimate 61 − 81 by rounding each number to the nearest 10: ______
- Estimate 63 + 69 by rounding each number to the nearest 10: ______
- Estimate 31 + 56 by rounding each number to the nearest 10: ______
- Estimate 46 − 23 by rounding each number to the nearest 10: ______
- Estimate 27 − 44 by rounding each number to the nearest 10: ______
- Estimate 80 + 79 by rounding each number to the nearest 10: ______
- Estimate 48 − 66 by rounding each number to the nearest 10: ______
- Estimate 21 + 54 by rounding each number to the nearest 10: ______
- Estimate 84 − 61 by rounding each number to the nearest 10: ______
- Estimate 31 − 57 by rounding each number to the nearest 10: ______