Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 22 − 89 by rounding each number to the nearest 10: ______
- Estimate 81 + 27 by rounding each number to the nearest 10: ______
- Estimate 77 − 63 by rounding each number to the nearest 10: ______
- Estimate 87 + 42 by rounding each number to the nearest 10: ______
- Estimate 27 + 82 by rounding each number to the nearest 10: ______
- Estimate 21 − 63 by rounding each number to the nearest 10: ______
- Estimate 54 − 47 by rounding each number to the nearest 10: ______
- Estimate 27 − 73 by rounding each number to the nearest 10: ______
- Estimate 27 − 31 by rounding each number to the nearest 10: ______
- Estimate 55 + 57 by rounding each number to the nearest 10: ______
- Estimate 45 − 81 by rounding each number to the nearest 10: ______
- Estimate 88 + 32 by rounding each number to the nearest 10: ______
- Estimate 56 + 51 by rounding each number to the nearest 10: ______
- Estimate 84 − 46 by rounding each number to the nearest 10: ______
- Estimate 31 + 66 by rounding each number to the nearest 10: ______
- Estimate 52 + 71 by rounding each number to the nearest 10: ______
- Estimate 72 + 41 by rounding each number to the nearest 10: ______
- Estimate 87 − 61 by rounding each number to the nearest 10: ______
- Estimate 75 − 51 by rounding each number to the nearest 10: ______
- Estimate 50 + 42 by rounding each number to the nearest 10: ______