Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 + 68 by rounding each number to the nearest 10: ______
- Estimate 29 + 31 by rounding each number to the nearest 10: ______
- Estimate 57 − 61 by rounding each number to the nearest 10: ______
- Estimate 86 + 64 by rounding each number to the nearest 10: ______
- Estimate 62 − 74 by rounding each number to the nearest 10: ______
- Estimate 78 + 37 by rounding each number to the nearest 10: ______
- Estimate 81 + 37 by rounding each number to the nearest 10: ______
- Estimate 67 − 57 by rounding each number to the nearest 10: ______
- Estimate 26 − 48 by rounding each number to the nearest 10: ______
- Estimate 56 + 86 by rounding each number to the nearest 10: ______
- Estimate 35 + 61 by rounding each number to the nearest 10: ______
- Estimate 85 + 23 by rounding each number to the nearest 10: ______
- Estimate 41 − 78 by rounding each number to the nearest 10: ______
- Estimate 22 − 84 by rounding each number to the nearest 10: ______
- Estimate 50 + 48 by rounding each number to the nearest 10: ______
- Estimate 88 + 23 by rounding each number to the nearest 10: ______
- Estimate 58 + 62 by rounding each number to the nearest 10: ______
- Estimate 44 − 21 by rounding each number to the nearest 10: ______
- Estimate 66 − 34 by rounding each number to the nearest 10: ______
- Estimate 33 − 57 by rounding each number to the nearest 10: ______