Question

question 4 of 25
use the order of operations to simplify $6.6 - 3 \cdot 2 + \frac{1}{10}$.
a. $-\frac{7}{10}$
b. $1\frac{7}{10}$
c. $\frac{7}{10}$
d. $7\frac{3}{10}$

Explanation:

Step1: Do multiplication first

$3 \cdot 2 = 6$

Step2: Rewrite decimals as fractions

$6.6 = \frac{66}{10}$

Step3: Substitute and compute left to right

$\frac{66}{10} - 6 + \frac{1}{10} = \frac{66}{10} - \frac{60}{10} + \frac{1}{10}$

Step4: Calculate final value

$\frac{66 - 60 + 1}{10} = \frac{7}{10} + 1 = 1\frac{7}{10}$

Answer:

B. $1\frac{7}{10}$