Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 21 − 21 by rounding each number to the nearest 10: ______
- Estimate 68 + 47 by rounding each number to the nearest 10: ______
- Estimate 70 + 62 by rounding each number to the nearest 10: ______
- Estimate 35 − 62 by rounding each number to the nearest 10: ______
- Estimate 66 − 26 by rounding each number to the nearest 10: ______
- Estimate 36 + 69 by rounding each number to the nearest 10: ______
- Estimate 44 − 72 by rounding each number to the nearest 10: ______
- Estimate 81 + 51 by rounding each number to the nearest 10: ______
- Estimate 26 − 74 by rounding each number to the nearest 10: ______
- Estimate 46 − 69 by rounding each number to the nearest 10: ______
- Estimate 52 − 35 by rounding each number to the nearest 10: ______
- Estimate 82 + 75 by rounding each number to the nearest 10: ______
- Estimate 38 + 28 by rounding each number to the nearest 10: ______
- Estimate 60 + 40 by rounding each number to the nearest 10: ______
- Estimate 28 − 89 by rounding each number to the nearest 10: ______
- Estimate 28 − 80 by rounding each number to the nearest 10: ______
- Estimate 55 + 31 by rounding each number to the nearest 10: ______
- Estimate 51 − 61 by rounding each number to the nearest 10: ______
- Estimate 77 − 67 by rounding each number to the nearest 10: ______
- Estimate 25 − 71 by rounding each number to the nearest 10: ______