Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 81 + 71 by rounding each number to the nearest 10: ______
- Estimate 58 + 39 by rounding each number to the nearest 10: ______
- Estimate 78 − 79 by rounding each number to the nearest 10: ______
- Estimate 38 − 87 by rounding each number to the nearest 10: ______
- Estimate 26 − 72 by rounding each number to the nearest 10: ______
- Estimate 23 + 57 by rounding each number to the nearest 10: ______
- Estimate 88 + 52 by rounding each number to the nearest 10: ______
- Estimate 21 + 30 by rounding each number to the nearest 10: ______
- Estimate 64 − 39 by rounding each number to the nearest 10: ______
- Estimate 56 + 58 by rounding each number to the nearest 10: ______
- Estimate 23 + 25 by rounding each number to the nearest 10: ______
- Estimate 51 + 46 by rounding each number to the nearest 10: ______
- Estimate 32 + 51 by rounding each number to the nearest 10: ______
- Estimate 21 − 72 by rounding each number to the nearest 10: ______
- Estimate 48 + 67 by rounding each number to the nearest 10: ______
- Estimate 74 − 66 by rounding each number to the nearest 10: ______
- Estimate 38 − 48 by rounding each number to the nearest 10: ______
- Estimate 37 − 53 by rounding each number to the nearest 10: ______
- Estimate 65 − 53 by rounding each number to the nearest 10: ______
- Estimate 43 − 87 by rounding each number to the nearest 10: ______