Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 61 + 42 by rounding each number to the nearest 10: ______
- Estimate 85 − 35 by rounding each number to the nearest 10: ______
- Estimate 60 − 87 by rounding each number to the nearest 10: ______
- Estimate 79 + 38 by rounding each number to the nearest 10: ______
- Estimate 39 + 48 by rounding each number to the nearest 10: ______
- Estimate 78 − 59 by rounding each number to the nearest 10: ______
- Estimate 42 − 38 by rounding each number to the nearest 10: ______
- Estimate 43 − 59 by rounding each number to the nearest 10: ______
- Estimate 54 − 45 by rounding each number to the nearest 10: ______
- Estimate 58 − 23 by rounding each number to the nearest 10: ______
- Estimate 32 − 69 by rounding each number to the nearest 10: ______
- Estimate 57 − 83 by rounding each number to the nearest 10: ______
- Estimate 39 + 79 by rounding each number to the nearest 10: ______
- Estimate 44 − 82 by rounding each number to the nearest 10: ______
- Estimate 50 + 62 by rounding each number to the nearest 10: ______
- Estimate 39 + 41 by rounding each number to the nearest 10: ______
- Estimate 63 + 21 by rounding each number to the nearest 10: ______
- Estimate 70 − 87 by rounding each number to the nearest 10: ______
- Estimate 40 − 43 by rounding each number to the nearest 10: ______
- Estimate 85 + 63 by rounding each number to the nearest 10: ______