50.4x1.9-1.8简便计算 50.4x1.9一1.8怎么做
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50.4x1.9 - 1.8用简便方法计算.50.4x1.9-1.8=95.76-1.8=93.96
50.4x1.9-1.9=(50.4-1)*1.9=(50-0.6)*(2-0.1)=50*2+0.6*0.1-50*0.1-2*0.6=100+0.06-5-1.2=94.94
50.4*1.9 - 1.8的怎么简便计算,急急急,谁说对了我就采纳50.4*1.9-1.8的简便计算=(50+0.4)x1.9-1.8=50x1.9+0.4x1.9-1.8=95+0.76-1.8=94.24-1.8=92.44
50.4*1.9 - 1.8的简便是?先算乘数,50.4x1.9=95.76再然后用这个答案减去1.8,就=93.96
五十点四乘一点九减一点八的简便计算怎样算50.4*1.9-1.8 =50.4*1.9-1.9+0.1 =1.9(50.4-1)+0.1 =49.4(2-0.1)+0.1 =98.8-4.94+0.1 =98.8-4.84 =93.96
50·4乘1·9减1·8简便方法怎样计算50.4*2-(5.04+1.8)
5.04*1.9 - 1.8简便怎样算5.04*1.9-1.8 =5.04(2-0.1)-1.8 =10.08-0.504-1.8 =10.08-2.304 =7.78-0.004 =7.776
脱式计算,能简算的要简算. 50.4*1.9 - 1.8 3.76*0.25+25.8.(1)50.4*1.9-1.8, =95.76-1.8, =93.96; (2)3.76*0.25+25.8, =0.94+25.8, =26.74; (3)4.8*0.25, =1.2*(4*0.25), =1.2; (4)1.5*105, =1.5*(100+5), =150+7.5, =157.5; (5)1.2*2.5+0.8*2.5, =(1.2+0.8)*2.5, =2*2.5, =5; (6)21.36÷0.8-12.9, =26.7-12.9, =13.8;
五十点四乘一点九减一点八的简便运算50.4*(1.9-1.8)=5.04.
5.4*1.9 - 1.8用简便算法怎么做??????5.4*1.9-1.8 =5.4*(2-0.1)-1.8 =5.4*2-5.4*0.1-1.8 =10.8-0.54-1.8 =8.46
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