A simple algorithm of (6 / 7 × 125) × 7 × 8

A simple algorithm of (6 / 7 × 125) × 7 × 8

(6 / 7 × 125) × 7 × 8
=（6/7×7）×（125×8）
=6×1000
=6000

A simple algorithm of 5 / 11-1 / 8 + 6 / 11-7 / 8

5/11-1/8+6/11-7/8=(5/11+6/11)-(1/8+7/8)=1-1=0

Those who can use the simple method should use the simple method to calculate 25 × 10 + 10 × 354.86 × [1 ÷ (2.1-2.09)] 8.8-6.75 + 9.2-0.25 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 9999 + 9999 + 9 + 6

①25×10+10×35=10×（25+35）=10×1=10②4.86×[1÷（2.1-2.09）]=4.86×（1÷0.01）=4.86×100=486③8.8-6.75+9.2-0.25=（8.8+9.2）-（6.75+0.25）=18-7=11               ④99999+9999+999+99+9+6=（99999+1）+（9999+1）+（999+1）+（99+1）+（9+1）+1=100000+10000+1000+100+10+1=111111

A simple algorithm for 8.6 + 5.7 △ 2.9

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