Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 71 − 45 by rounding each number to the nearest 10: ______
- Estimate 21 − 72 by rounding each number to the nearest 10: ______
- Estimate 87 + 79 by rounding each number to the nearest 10: ______
- Estimate 43 − 21 by rounding each number to the nearest 10: ______
- Estimate 28 + 50 by rounding each number to the nearest 10: ______
- Estimate 82 + 43 by rounding each number to the nearest 10: ______
- Estimate 86 + 75 by rounding each number to the nearest 10: ______
- Estimate 36 + 55 by rounding each number to the nearest 10: ______
- Estimate 58 − 42 by rounding each number to the nearest 10: ______
- Estimate 54 − 89 by rounding each number to the nearest 10: ______
- Estimate 66 − 83 by rounding each number to the nearest 10: ______
- Estimate 54 − 87 by rounding each number to the nearest 10: ______
- Estimate 56 + 63 by rounding each number to the nearest 10: ______
- Estimate 34 + 23 by rounding each number to the nearest 10: ______
- Estimate 29 − 58 by rounding each number to the nearest 10: ______
- Estimate 69 + 22 by rounding each number to the nearest 10: ______
- Estimate 42 + 49 by rounding each number to the nearest 10: ______
- Estimate 73 − 63 by rounding each number to the nearest 10: ______
- Estimate 56 − 49 by rounding each number to the nearest 10: ______
- Estimate 82 − 70 by rounding each number to the nearest 10: ______