Question

3 - 15 × 5

a. 90
b. 0
c. –72
d. 78

Answer 1

Please type your <u>subject</u> in the <b>School Subject</b> box. Any other words, <u>including obscure abbreviations</u>, are likely to delay responses from a teacher who knows that subject well.

Answer 2

Here's a way to remember the order of expression:

Please Excuse My Dear Aunt Sally
(parenthesis, exponents, multiply/divide, add/subtract)

in this case, you'd multiply before you subtract!

Answer 3

-72 ?????

Answer 4

that's correct