Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 39 − 42 by rounding each number to the nearest 10: ______
- Estimate 49 + 32 by rounding each number to the nearest 10: ______
- Estimate 79 + 69 by rounding each number to the nearest 10: ______
- Estimate 38 − 76 by rounding each number to the nearest 10: ______
- Estimate 71 − 56 by rounding each number to the nearest 10: ______
- Estimate 59 + 26 by rounding each number to the nearest 10: ______
- Estimate 47 + 36 by rounding each number to the nearest 10: ______
- Estimate 42 + 81 by rounding each number to the nearest 10: ______
- Estimate 54 − 21 by rounding each number to the nearest 10: ______
- Estimate 71 − 32 by rounding each number to the nearest 10: ______
- Estimate 38 + 73 by rounding each number to the nearest 10: ______
- Estimate 21 − 44 by rounding each number to the nearest 10: ______
- Estimate 89 − 46 by rounding each number to the nearest 10: ______
- Estimate 65 + 38 by rounding each number to the nearest 10: ______
- Estimate 89 − 73 by rounding each number to the nearest 10: ______
- Estimate 89 − 21 by rounding each number to the nearest 10: ______
- Estimate 40 − 23 by rounding each number to the nearest 10: ______
- Estimate 39 − 76 by rounding each number to the nearest 10: ______
- Estimate 58 + 60 by rounding each number to the nearest 10: ______
- Estimate 38 + 74 by rounding each number to the nearest 10: ______