Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 21 − 78 by rounding each number to the nearest 10: ______
- Estimate 78 − 37 by rounding each number to the nearest 10: ______
- Estimate 38 − 77 by rounding each number to the nearest 10: ______
- Estimate 74 − 40 by rounding each number to the nearest 10: ______
- Estimate 42 + 80 by rounding each number to the nearest 10: ______
- Estimate 70 + 65 by rounding each number to the nearest 10: ______
- Estimate 51 + 44 by rounding each number to the nearest 10: ______
- Estimate 29 + 59 by rounding each number to the nearest 10: ______
- Estimate 34 − 81 by rounding each number to the nearest 10: ______
- Estimate 38 − 89 by rounding each number to the nearest 10: ______
- Estimate 73 + 44 by rounding each number to the nearest 10: ______
- Estimate 85 − 53 by rounding each number to the nearest 10: ______
- Estimate 46 − 55 by rounding each number to the nearest 10: ______
- Estimate 43 + 62 by rounding each number to the nearest 10: ______
- Estimate 28 − 89 by rounding each number to the nearest 10: ______
- Estimate 46 + 71 by rounding each number to the nearest 10: ______
- Estimate 34 + 67 by rounding each number to the nearest 10: ______
- Estimate 77 − 42 by rounding each number to the nearest 10: ______
- Estimate 43 + 72 by rounding each number to the nearest 10: ______
- Estimate 30 − 54 by rounding each number to the nearest 10: ______