Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 49 + 21 by rounding each number to the nearest 10: ______
- Estimate 78 − 63 by rounding each number to the nearest 10: ______
- Estimate 61 − 51 by rounding each number to the nearest 10: ______
- Estimate 44 − 69 by rounding each number to the nearest 10: ______
- Estimate 28 − 51 by rounding each number to the nearest 10: ______
- Estimate 81 + 21 by rounding each number to the nearest 10: ______
- Estimate 38 − 27 by rounding each number to the nearest 10: ______
- Estimate 42 − 24 by rounding each number to the nearest 10: ______
- Estimate 33 + 24 by rounding each number to the nearest 10: ______
- Estimate 52 + 57 by rounding each number to the nearest 10: ______
- Estimate 49 + 47 by rounding each number to the nearest 10: ______
- Estimate 25 + 32 by rounding each number to the nearest 10: ______
- Estimate 77 + 79 by rounding each number to the nearest 10: ______
- Estimate 21 + 71 by rounding each number to the nearest 10: ______
- Estimate 66 + 69 by rounding each number to the nearest 10: ______
- Estimate 78 − 42 by rounding each number to the nearest 10: ______
- Estimate 38 − 52 by rounding each number to the nearest 10: ______
- Estimate 59 + 26 by rounding each number to the nearest 10: ______
- Estimate 50 + 45 by rounding each number to the nearest 10: ______
- Estimate 86 + 75 by rounding each number to the nearest 10: ______