Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 28 − 70 by rounding each number to the nearest 10: ______
- Estimate 58 − 69 by rounding each number to the nearest 10: ______
- Estimate 42 − 53 by rounding each number to the nearest 10: ______
- Estimate 71 + 27 by rounding each number to the nearest 10: ______
- Estimate 41 − 23 by rounding each number to the nearest 10: ______
- Estimate 28 + 60 by rounding each number to the nearest 10: ______
- Estimate 84 + 67 by rounding each number to the nearest 10: ______
- Estimate 54 + 43 by rounding each number to the nearest 10: ______
- Estimate 86 − 42 by rounding each number to the nearest 10: ______
- Estimate 79 − 82 by rounding each number to the nearest 10: ______
- Estimate 45 + 64 by rounding each number to the nearest 10: ______
- Estimate 60 − 42 by rounding each number to the nearest 10: ______
- Estimate 37 + 76 by rounding each number to the nearest 10: ______
- Estimate 68 − 84 by rounding each number to the nearest 10: ______
- Estimate 85 − 52 by rounding each number to the nearest 10: ______
- Estimate 56 − 71 by rounding each number to the nearest 10: ______
- Estimate 88 + 33 by rounding each number to the nearest 10: ______
- Estimate 82 + 32 by rounding each number to the nearest 10: ______
- Estimate 84 + 45 by rounding each number to the nearest 10: ______
- Estimate 50 − 28 by rounding each number to the nearest 10: ______