Question

Bryan started to evaluate a decimal expression.

2.5(42 ÷ 3.2 – 10(0.2) + 3)– 5.2

2.5(16 ÷ 3.2 – 10(0.2) + 3) – 5.2
What will be the next step?

Answer 1

division of 16 by 3.2

Explanation:

2.5(4^2 ÷ 3.2 – 10(0.2) + 3)– 5.2

2.5(16 ÷ 3.2 – 10(0.2) + 3) – 5.2

Next, he will perform multiplication and division inside parentheses, left to right.

2.5(5 – 10(0.2) + 3) – 5.2 . . . . . Bryan's next step

2.5(5 – 2 + 3) – 5.2

Then, he will finish evaluating inside parentheses by performing addition and subtraction left to right.

2.5(3 + 3) – 5.2

2.5(6) – 5.2

With parentheses evaluated, now we do multiplication and division, left to right.

15 – 5.2

Finally, addition and subtraction left to right.

9.8