Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 40 − 72 by rounding each number to the nearest 10: ______
- Estimate 26 − 78 by rounding each number to the nearest 10: ______
- Estimate 65 + 79 by rounding each number to the nearest 10: ______
- Estimate 85 + 36 by rounding each number to the nearest 10: ______
- Estimate 56 + 47 by rounding each number to the nearest 10: ______
- Estimate 85 − 78 by rounding each number to the nearest 10: ______
- Estimate 68 + 23 by rounding each number to the nearest 10: ______
- Estimate 21 − 37 by rounding each number to the nearest 10: ______
- Estimate 76 + 22 by rounding each number to the nearest 10: ______
- Estimate 23 + 61 by rounding each number to the nearest 10: ______
- Estimate 83 + 25 by rounding each number to the nearest 10: ______
- Estimate 31 + 59 by rounding each number to the nearest 10: ______
- Estimate 71 − 89 by rounding each number to the nearest 10: ______
- Estimate 21 + 39 by rounding each number to the nearest 10: ______
- Estimate 63 + 76 by rounding each number to the nearest 10: ______
- Estimate 72 − 36 by rounding each number to the nearest 10: ______
- Estimate 24 + 64 by rounding each number to the nearest 10: ______
- Estimate 76 − 44 by rounding each number to the nearest 10: ______
- Estimate 49 + 42 by rounding each number to the nearest 10: ______
- Estimate 79 + 65 by rounding each number to the nearest 10: ______