Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 21 + 46 by rounding each number to the nearest 10: ______
- Estimate 81 + 42 by rounding each number to the nearest 10: ______
- Estimate 77 − 30 by rounding each number to the nearest 10: ______
- Estimate 54 − 69 by rounding each number to the nearest 10: ______
- Estimate 87 − 49 by rounding each number to the nearest 10: ______
- Estimate 58 − 30 by rounding each number to the nearest 10: ______
- Estimate 48 − 86 by rounding each number to the nearest 10: ______
- Estimate 85 − 25 by rounding each number to the nearest 10: ______
- Estimate 21 + 79 by rounding each number to the nearest 10: ______
- Estimate 79 − 21 by rounding each number to the nearest 10: ______
- Estimate 42 + 29 by rounding each number to the nearest 10: ______
- Estimate 36 − 49 by rounding each number to the nearest 10: ______
- Estimate 66 − 25 by rounding each number to the nearest 10: ______
- Estimate 27 − 29 by rounding each number to the nearest 10: ______
- Estimate 55 − 32 by rounding each number to the nearest 10: ______
- Estimate 67 + 69 by rounding each number to the nearest 10: ______
- Estimate 53 + 72 by rounding each number to the nearest 10: ______
- Estimate 21 + 31 by rounding each number to the nearest 10: ______
- Estimate 32 − 50 by rounding each number to the nearest 10: ______
- Estimate 51 − 86 by rounding each number to the nearest 10: ______