Final answer:
The estimated value of 2.7 multiplied by (-3.2) is -9, and the calculated value is -8.64. Hence, the correct option is b) Estimate: -9, Calculate: -8.64.
Step-by-step explanation:
To estimate and calculate the value of 2.7 multiplied by (-3.2), we start by estimating the numbers to the nearest whole number. We can round 2.7 to 3 and -3.2 to -3, which makes the estimation easier. Multiplying these two estimated numbers:
- Estimate: 3 × (-3) = -9
To calculate the exact answer we multiply the original numbers:
- Calculate: 2.7 × (-3.2) = -8.64
Therefore, the correct option based on our estimation and calculation is:
b) Estimate: -9, Calculate: -8.64