A simple method is used to calculate;
(- 9) & # 179; × (- 2 / 3) & # 179; × (1 / 3) & # 179;
=(9 × 2 / 3 × 1 / 3) &;
=2³
=8
Simple operation of 812 + 197 + 78
one hundred and eleven
Additive commutative law and associative law
812+197+78 = (812+78)+197 = 890 +197 = 1087