Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 34 + 44 by rounding each number to the nearest 10: ______
- Estimate 60 − 26 by rounding each number to the nearest 10: ______
- Estimate 79 − 27 by rounding each number to the nearest 10: ______
- Estimate 69 − 74 by rounding each number to the nearest 10: ______
- Estimate 78 + 71 by rounding each number to the nearest 10: ______
- Estimate 84 + 65 by rounding each number to the nearest 10: ______
- Estimate 54 − 53 by rounding each number to the nearest 10: ______
- Estimate 35 − 55 by rounding each number to the nearest 10: ______
- Estimate 53 − 42 by rounding each number to the nearest 10: ______
- Estimate 56 − 84 by rounding each number to the nearest 10: ______
- Estimate 59 + 53 by rounding each number to the nearest 10: ______
- Estimate 30 + 63 by rounding each number to the nearest 10: ______
- Estimate 86 + 62 by rounding each number to the nearest 10: ______
- Estimate 74 + 46 by rounding each number to the nearest 10: ______
- Estimate 80 − 49 by rounding each number to the nearest 10: ______
- Estimate 42 − 45 by rounding each number to the nearest 10: ______
- Estimate 69 + 31 by rounding each number to the nearest 10: ______
- Estimate 71 + 21 by rounding each number to the nearest 10: ______
- Estimate 32 − 42 by rounding each number to the nearest 10: ______
- Estimate 55 − 42 by rounding each number to the nearest 10: ______