(1-100 / 1 × 30) × 2 / 7 (simple calculation)
(1-100 / 1 × 30) × 7 / 2
=(1-3 / 10) × 2 / 7
=7 / 10 × 2 / 7
=1 / 5
How to calculate 80.8 × 101-808?
How to solve the equation of 0.5x △ 1 / 28 × 6 = 7?
80.8×101-808
=80.8*(100+1)-808
=808+80.8-808
=80.8
Using the law of multiplicative distribution: a (B + C) = AB + AC
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Simple calculation of 1212-1111 + 1010-909 + 808-707 + 606
Fast
In five minutes
=(1212-1111)+(1010-909)+(808-707)+606
=101+101+101+606=909