Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 55 + 50 by rounding each number to the nearest 10: ______
- Estimate 56 − 82 by rounding each number to the nearest 10: ______
- Estimate 85 + 49 by rounding each number to the nearest 10: ______
- Estimate 58 + 61 by rounding each number to the nearest 10: ______
- Estimate 24 + 21 by rounding each number to the nearest 10: ______
- Estimate 76 + 25 by rounding each number to the nearest 10: ______
- Estimate 78 − 88 by rounding each number to the nearest 10: ______
- Estimate 52 − 40 by rounding each number to the nearest 10: ______
- Estimate 44 − 38 by rounding each number to the nearest 10: ______
- Estimate 58 + 43 by rounding each number to the nearest 10: ______
- Estimate 63 + 32 by rounding each number to the nearest 10: ______
- Estimate 30 − 25 by rounding each number to the nearest 10: ______
- Estimate 43 + 41 by rounding each number to the nearest 10: ______
- Estimate 42 + 80 by rounding each number to the nearest 10: ______
- Estimate 83 + 58 by rounding each number to the nearest 10: ______
- Estimate 23 + 36 by rounding each number to the nearest 10: ______
- Estimate 33 − 58 by rounding each number to the nearest 10: ______
- Estimate 33 + 46 by rounding each number to the nearest 10: ______
- Estimate 83 + 39 by rounding each number to the nearest 10: ______
- Estimate 52 + 76 by rounding each number to the nearest 10: ______