Grant simplified the expression 1.5(-3.2 + 2.5). His work is shown below. Explain the error in
Grant's work.
In Step 2, the sum should be written as
-4.8 + (-2.5).
In Step 3, the difference of -4.8 and 3.75 should
be positive.
1.5(-3.2 + 2.5)
= 1.5x (-3.2) - 1.5x (2.5)
= -4.8 -3.75
= -8.55
Step 1
Step 2
Step 3
In Step 1, the difference of 1.5 * (-3.2) and
1.5 x 2.5) should be written as a sum.
In Step 2, the product of 1.5 and -3.2 should be
positive.