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.