Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 33 − 53 by rounding each number to the nearest 10: ______
- Estimate 42 − 72 by rounding each number to the nearest 10: ______
- Estimate 33 + 71 by rounding each number to the nearest 10: ______
- Estimate 31 + 30 by rounding each number to the nearest 10: ______
- Estimate 66 − 58 by rounding each number to the nearest 10: ______
- Estimate 57 − 73 by rounding each number to the nearest 10: ______
- Estimate 60 + 72 by rounding each number to the nearest 10: ______
- Estimate 68 − 31 by rounding each number to the nearest 10: ______
- Estimate 80 + 33 by rounding each number to the nearest 10: ______
- Estimate 71 − 61 by rounding each number to the nearest 10: ______
- Estimate 46 + 44 by rounding each number to the nearest 10: ______
- Estimate 56 − 56 by rounding each number to the nearest 10: ______
- Estimate 61 + 43 by rounding each number to the nearest 10: ______
- Estimate 86 + 79 by rounding each number to the nearest 10: ______
- Estimate 47 − 33 by rounding each number to the nearest 10: ______
- Estimate 65 + 84 by rounding each number to the nearest 10: ______
- Estimate 71 + 40 by rounding each number to the nearest 10: ______
- Estimate 23 − 30 by rounding each number to the nearest 10: ______
- Estimate 59 + 24 by rounding each number to the nearest 10: ______
- Estimate 45 − 74 by rounding each number to the nearest 10: ______