Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 40 − 81 by rounding each number to the nearest 10: ______
- Estimate 51 − 42 by rounding each number to the nearest 10: ______
- Estimate 51 + 31 by rounding each number to the nearest 10: ______
- Estimate 67 + 39 by rounding each number to the nearest 10: ______
- Estimate 66 − 81 by rounding each number to the nearest 10: ______
- Estimate 75 + 40 by rounding each number to the nearest 10: ______
- Estimate 21 + 33 by rounding each number to the nearest 10: ______
- Estimate 63 + 73 by rounding each number to the nearest 10: ______
- Estimate 25 − 62 by rounding each number to the nearest 10: ______
- Estimate 59 − 65 by rounding each number to the nearest 10: ______
- Estimate 79 + 86 by rounding each number to the nearest 10: ______
- Estimate 59 + 85 by rounding each number to the nearest 10: ______
- Estimate 26 − 74 by rounding each number to the nearest 10: ______
- Estimate 62 + 46 by rounding each number to the nearest 10: ______
- Estimate 78 − 85 by rounding each number to the nearest 10: ______
- Estimate 83 + 76 by rounding each number to the nearest 10: ______
- Estimate 38 − 71 by rounding each number to the nearest 10: ______
- Estimate 38 + 28 by rounding each number to the nearest 10: ______
- Estimate 50 − 37 by rounding each number to the nearest 10: ______
- Estimate 22 − 21 by rounding each number to the nearest 10: ______