Question

What is 13.5+5.7+36.5 using mental math​

Answer 1

Answer: 55.7

Explanation:

.5 + .5 = 1

1 + 13 = 14

6 + 4 = 10

10 + 10 = 20

20 + 30 = 50

50 + 5.7 = 55.7

Answer 2

55.7

you can add 13.5 and 36.5 in your head that will get rid of the decimal so you get 50. then add 5.7 which is 55.7