The first step that Sarah performed to simplify the expression 4(6.8−4.2)+8.22 before entering it into the calculator is shown. 2(3.4–2.1)+4.1 Which statement is true?
Answer
A
The first step should have been 2(6.8–4.2)+8.2.
B
Sarah performed the first step correctly.
C
The first step should have been the fraction with numerator 4 times 2 point 6 plus 8 point 2 and denominator 2.
D
The first step should have been the fraction with numerator 27 point 2 minus 4 point 2 plus 8 point 2 and denominator 2.