Never
But if you do 10x10 it = 100
x=10
10+100+10 is 120 so A=120.
10 × 10 = 100 (Therefore, x equals 10.)
The total is 400.
The answer is 100.
6 of them plus 10 = 100
155
100 100 004 001 ------- 205 -------
245
X=65
100 - 10 + 3 = 93 You don't need any parentheses.
10 squared equals 100. 102 = 10*10 10*10 = 100