5โ
5โ
5โ
2โ
2โ
2=?
We use the substitution property and organize the exercise in the following order:
5ร2ร5ร2ร5ร2=
We place parentheses in the exercise:
(5ร2)ร(5ร2)ร(5ร2)=
We solve from left to right:
10ร10ร10=
(10ร10)ร10=
100ร10=1000