Carlos is using the distributive property to evaluate the expression 14(49) by using friendlier numbers. His work is shown below.

Carlos’s Work




14(49)


Step 1

14(40 + 9)


Step 2

14(40) + 9


Step 3

560 + 9


Step 4

569



What was the first error that Carlos made?


Step 1 should have been 14(7 + 7).

Step 2 should have been 14(40) + 14(9).

Step 3 should have been 23(40).

Step 4 should have been 5,040.