Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 21 + 55 by rounding each number to the nearest 10: ______
- Estimate 78 + 51 by rounding each number to the nearest 10: ______
- Estimate 86 + 68 by rounding each number to the nearest 10: ______
- Estimate 81 − 38 by rounding each number to the nearest 10: ______
- Estimate 42 + 24 by rounding each number to the nearest 10: ______
- Estimate 23 − 32 by rounding each number to the nearest 10: ______
- Estimate 70 − 39 by rounding each number to the nearest 10: ______
- Estimate 52 + 82 by rounding each number to the nearest 10: ______
- Estimate 65 − 46 by rounding each number to the nearest 10: ______
- Estimate 86 + 38 by rounding each number to the nearest 10: ______
- Estimate 23 − 47 by rounding each number to the nearest 10: ______
- Estimate 86 + 66 by rounding each number to the nearest 10: ______
- Estimate 64 + 81 by rounding each number to the nearest 10: ______
- Estimate 29 + 75 by rounding each number to the nearest 10: ______
- Estimate 49 − 45 by rounding each number to the nearest 10: ______
- Estimate 53 + 31 by rounding each number to the nearest 10: ______
- Estimate 26 + 73 by rounding each number to the nearest 10: ______
- Estimate 52 − 57 by rounding each number to the nearest 10: ______
- Estimate 38 − 82 by rounding each number to the nearest 10: ______
- Estimate 52 + 71 by rounding each number to the nearest 10: ______