Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 61 − 38 by rounding each number to the nearest 10: ______
- Estimate 26 + 27 by rounding each number to the nearest 10: ______
- Estimate 80 + 56 by rounding each number to the nearest 10: ______
- Estimate 78 + 47 by rounding each number to the nearest 10: ______
- Estimate 70 + 48 by rounding each number to the nearest 10: ______
- Estimate 21 − 54 by rounding each number to the nearest 10: ______
- Estimate 44 + 21 by rounding each number to the nearest 10: ______
- Estimate 47 + 28 by rounding each number to the nearest 10: ______
- Estimate 55 + 29 by rounding each number to the nearest 10: ______
- Estimate 70 − 21 by rounding each number to the nearest 10: ______
- Estimate 26 + 52 by rounding each number to the nearest 10: ______
- Estimate 40 − 72 by rounding each number to the nearest 10: ______
- Estimate 57 − 66 by rounding each number to the nearest 10: ______
- Estimate 81 + 28 by rounding each number to the nearest 10: ______
- Estimate 42 + 39 by rounding each number to the nearest 10: ______
- Estimate 66 + 41 by rounding each number to the nearest 10: ______
- Estimate 78 − 78 by rounding each number to the nearest 10: ______
- Estimate 86 − 25 by rounding each number to the nearest 10: ______
- Estimate 45 + 81 by rounding each number to the nearest 10: ______
- Estimate 30 − 82 by rounding each number to the nearest 10: ______