Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 78 − 67 by rounding each number to the nearest 10: ______
- Estimate 80 − 23 by rounding each number to the nearest 10: ______
- Estimate 61 − 34 by rounding each number to the nearest 10: ______
- Estimate 86 + 77 by rounding each number to the nearest 10: ______
- Estimate 77 + 49 by rounding each number to the nearest 10: ______
- Estimate 52 − 65 by rounding each number to the nearest 10: ______
- Estimate 89 + 40 by rounding each number to the nearest 10: ______
- Estimate 88 + 61 by rounding each number to the nearest 10: ______
- Estimate 77 − 53 by rounding each number to the nearest 10: ______
- Estimate 56 + 80 by rounding each number to the nearest 10: ______
- Estimate 70 + 23 by rounding each number to the nearest 10: ______
- Estimate 81 + 78 by rounding each number to the nearest 10: ______
- Estimate 43 + 66 by rounding each number to the nearest 10: ______
- Estimate 65 − 38 by rounding each number to the nearest 10: ______
- Estimate 42 + 28 by rounding each number to the nearest 10: ______
- Estimate 76 + 63 by rounding each number to the nearest 10: ______
- Estimate 62 + 80 by rounding each number to the nearest 10: ______
- Estimate 56 + 32 by rounding each number to the nearest 10: ______
- Estimate 54 − 69 by rounding each number to the nearest 10: ______
- Estimate 33 + 53 by rounding each number to the nearest 10: ______