Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 42 − 22 by rounding each number to the nearest 10: ______
- Estimate 21 − 28 by rounding each number to the nearest 10: ______
- Estimate 61 − 52 by rounding each number to the nearest 10: ______
- Estimate 62 + 39 by rounding each number to the nearest 10: ______
- Estimate 42 + 51 by rounding each number to the nearest 10: ______
- Estimate 77 − 26 by rounding each number to the nearest 10: ______
- Estimate 23 − 87 by rounding each number to the nearest 10: ______
- Estimate 63 − 73 by rounding each number to the nearest 10: ______
- Estimate 45 − 57 by rounding each number to the nearest 10: ______
- Estimate 75 − 27 by rounding each number to the nearest 10: ______
- Estimate 50 − 43 by rounding each number to the nearest 10: ______
- Estimate 57 − 34 by rounding each number to the nearest 10: ______
- Estimate 21 + 84 by rounding each number to the nearest 10: ______
- Estimate 60 + 89 by rounding each number to the nearest 10: ______
- Estimate 49 − 57 by rounding each number to the nearest 10: ______
- Estimate 73 + 33 by rounding each number to the nearest 10: ______
- Estimate 76 − 88 by rounding each number to the nearest 10: ______
- Estimate 70 − 42 by rounding each number to the nearest 10: ______
- Estimate 84 + 34 by rounding each number to the nearest 10: ______
- Estimate 31 + 57 by rounding each number to the nearest 10: ______