Simple calculation. How to calculate this problem is simple. 12x (324-285) △ 26
12x(324-285)÷26
=12×39÷(2×13)
=(12÷2)×(39÷13)
=6×3
=18
(324-285)×12÷26.
(324-285)×12÷26,=39×12÷26,=468÷26,=18.
12×(324—285)÷26
12×3÷2
Simple calculation of 12 times (324-285) △ 26
12×〔324-285〕÷26 =(300+24-300+15)×12/26 =39×6/13 =3×6 =18.