Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 31 + 24 by rounding each number to the nearest 10: ______
- Estimate 31 − 40 by rounding each number to the nearest 10: ______
- Estimate 60 + 49 by rounding each number to the nearest 10: ______
- Estimate 64 − 21 by rounding each number to the nearest 10: ______
- Estimate 79 + 64 by rounding each number to the nearest 10: ______
- Estimate 40 + 21 by rounding each number to the nearest 10: ______
- Estimate 56 − 71 by rounding each number to the nearest 10: ______
- Estimate 75 + 56 by rounding each number to the nearest 10: ______
- Estimate 38 + 47 by rounding each number to the nearest 10: ______
- Estimate 54 + 78 by rounding each number to the nearest 10: ______
- Estimate 77 + 51 by rounding each number to the nearest 10: ______
- Estimate 56 − 38 by rounding each number to the nearest 10: ______
- Estimate 39 − 85 by rounding each number to the nearest 10: ______
- Estimate 59 + 32 by rounding each number to the nearest 10: ______
- Estimate 86 − 74 by rounding each number to the nearest 10: ______
- Estimate 79 + 46 by rounding each number to the nearest 10: ______
- Estimate 26 + 50 by rounding each number to the nearest 10: ______
- Estimate 54 − 88 by rounding each number to the nearest 10: ______
- Estimate 30 − 38 by rounding each number to the nearest 10: ______
- Estimate 21 − 29 by rounding each number to the nearest 10: ______