Question

Insert grouping symbols so that the expression has the given valueTarget value:235 to the second-0.2 x 8 + 12 x 1/2

Answer 1

Step-by-step explanation

This exercise is about the hierarchy of operations (addition, subtraction, multiplication, and division). It goes as follows:

Comment: When you have consecutive operations of the same level, the operation on the left must be calculated first.

Now, after trying a little, we find that the correct distribution of parenthesis is

`5^2-(0.2\cdot(8+12)\cdot(1)/(2))=25-(0.2\cdot20\cdot(1)/(2))=25-2=23.`Answer
`5^2-(0.2\cdot(8+12)\cdot(1)/(2))\text{.}`