Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 69 − 21 by rounding each number to the nearest 10: ______
- Estimate 77 + 32 by rounding each number to the nearest 10: ______
- Estimate 74 − 26 by rounding each number to the nearest 10: ______
- Estimate 26 + 67 by rounding each number to the nearest 10: ______
- Estimate 54 + 45 by rounding each number to the nearest 10: ______
- Estimate 28 + 63 by rounding each number to the nearest 10: ______
- Estimate 89 + 43 by rounding each number to the nearest 10: ______
- Estimate 69 + 72 by rounding each number to the nearest 10: ______
- Estimate 27 − 26 by rounding each number to the nearest 10: ______
- Estimate 43 − 73 by rounding each number to the nearest 10: ______
- Estimate 25 − 42 by rounding each number to the nearest 10: ______
- Estimate 87 + 50 by rounding each number to the nearest 10: ______
- Estimate 71 + 61 by rounding each number to the nearest 10: ______
- Estimate 65 + 74 by rounding each number to the nearest 10: ______
- Estimate 35 − 59 by rounding each number to the nearest 10: ______
- Estimate 29 − 81 by rounding each number to the nearest 10: ______
- Estimate 38 + 28 by rounding each number to the nearest 10: ______
- Estimate 76 − 61 by rounding each number to the nearest 10: ______
- Estimate 65 − 34 by rounding each number to the nearest 10: ______
- Estimate 59 + 36 by rounding each number to the nearest 10: ______