Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 82 − 30 by rounding each number to the nearest 10: ______
- Estimate 74 + 79 by rounding each number to the nearest 10: ______
- Estimate 36 + 38 by rounding each number to the nearest 10: ______
- Estimate 77 − 70 by rounding each number to the nearest 10: ______
- Estimate 44 − 56 by rounding each number to the nearest 10: ______
- Estimate 32 − 71 by rounding each number to the nearest 10: ______
- Estimate 71 + 54 by rounding each number to the nearest 10: ______
- Estimate 83 + 62 by rounding each number to the nearest 10: ______
- Estimate 33 − 65 by rounding each number to the nearest 10: ______
- Estimate 78 + 34 by rounding each number to the nearest 10: ______
- Estimate 59 − 76 by rounding each number to the nearest 10: ______
- Estimate 59 − 40 by rounding each number to the nearest 10: ______
- Estimate 52 + 77 by rounding each number to the nearest 10: ______
- Estimate 43 + 67 by rounding each number to the nearest 10: ______
- Estimate 41 − 30 by rounding each number to the nearest 10: ______
- Estimate 50 + 61 by rounding each number to the nearest 10: ______
- Estimate 71 + 26 by rounding each number to the nearest 10: ______
- Estimate 71 − 70 by rounding each number to the nearest 10: ______
- Estimate 41 − 24 by rounding each number to the nearest 10: ______
- Estimate 29 − 86 by rounding each number to the nearest 10: ______