Directions: Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the expression below.
(2.5 - 4) . ( = 18
Complete the steps in evaluating the expression by providing the unknown value in each line.
Step 1: (2.5 - 3)(8 + 1) = (1.25 – ?). ( = 1)
:?
=
Step 2:
= 0
Step 3:
= 0 . ?
Step 4:
= ?
The unknown value in step 1 is
The unknown value in step 2 is
The unknown value in step 3 is
The unknown value in step 4 is