Ellen said that (5 * 4) * 3 = 60. Which is another way to do this problem to check Ellen's answer?

A.

(5 + 4) * 3

B.

5 * (4 * 3)

C.

5 * (4 - 3)

D.

5 * (4 + 3)

Multiplication is commutative. Meaning a * b is same difference as b * a.

5 * 4 * 3 will equal to 60 even if no parentheses are present in the expression.

So, the answer to this question is B. 5 * (4 * 3).

(5 * 4) * 3 = 60

5 * (4 * 3) is also = 60.

Unlike addition and subtraction, the product of multiplication stays the same even if you remove the parenthesis or if you change their place.