Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 78 − 21 by rounding each number to the nearest 10: ______
- Estimate 74 + 21 by rounding each number to the nearest 10: ______
- Estimate 28 − 49 by rounding each number to the nearest 10: ______
- Estimate 40 + 21 by rounding each number to the nearest 10: ______
- Estimate 29 − 67 by rounding each number to the nearest 10: ______
- Estimate 85 − 60 by rounding each number to the nearest 10: ______
- Estimate 88 − 36 by rounding each number to the nearest 10: ______
- Estimate 28 + 42 by rounding each number to the nearest 10: ______
- Estimate 70 + 31 by rounding each number to the nearest 10: ______
- Estimate 42 + 51 by rounding each number to the nearest 10: ______
- Estimate 57 − 43 by rounding each number to the nearest 10: ______
- Estimate 85 − 74 by rounding each number to the nearest 10: ______
- Estimate 55 − 64 by rounding each number to the nearest 10: ______
- Estimate 25 + 32 by rounding each number to the nearest 10: ______
- Estimate 76 + 76 by rounding each number to the nearest 10: ______
- Estimate 64 + 78 by rounding each number to the nearest 10: ______
- Estimate 34 + 46 by rounding each number to the nearest 10: ______
- Estimate 59 + 77 by rounding each number to the nearest 10: ______
- Estimate 44 − 54 by rounding each number to the nearest 10: ______
- Estimate 64 + 71 by rounding each number to the nearest 10: ______