Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 40 − 80 by rounding each number to the nearest 10: ______
- Estimate 48 − 37 by rounding each number to the nearest 10: ______
- Estimate 66 − 85 by rounding each number to the nearest 10: ______
- Estimate 27 + 59 by rounding each number to the nearest 10: ______
- Estimate 76 − 84 by rounding each number to the nearest 10: ______
- Estimate 79 − 55 by rounding each number to the nearest 10: ______
- Estimate 59 + 69 by rounding each number to the nearest 10: ______
- Estimate 39 + 34 by rounding each number to the nearest 10: ______
- Estimate 24 + 51 by rounding each number to the nearest 10: ______
- Estimate 30 − 59 by rounding each number to the nearest 10: ______
- Estimate 52 − 61 by rounding each number to the nearest 10: ______
- Estimate 72 + 61 by rounding each number to the nearest 10: ______
- Estimate 62 − 44 by rounding each number to the nearest 10: ______
- Estimate 78 − 57 by rounding each number to the nearest 10: ______
- Estimate 60 + 47 by rounding each number to the nearest 10: ______
- Estimate 45 + 39 by rounding each number to the nearest 10: ______
- Estimate 58 − 89 by rounding each number to the nearest 10: ______
- Estimate 55 + 63 by rounding each number to the nearest 10: ______
- Estimate 23 + 82 by rounding each number to the nearest 10: ______
- Estimate 36 − 35 by rounding each number to the nearest 10: ______