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102 75的简便方法

75*102=75*(100+2)=7500 + 150=7650

(1)102*75=(100+2)*75=100*75+2*75=7500+150=7650;(2)256*8+44*8 =(256+44)*8=300*8=2400;(3)36*99=36*(100-1)=36*100-99=3600-99=3501;(4)68*99+68 =(99+1)*68=100*68=6800;(5)125*32 =125*8*4=1000*4=4000;(6)270÷45=270÷(9*5)=270÷9÷5=30÷5=6.

(100+2)*75=7500+150=7650

102*75=(100+2)*75=100*75+2*75=7500+150=7650

102x76 =(100+2)x76 =76x100+76x2 =7600+152 =7752

102x75=100x75+2x75=7500+150=7650

原式=0.75*(100+2)=0.75*100+2*0.75=75+1.5=76.5

100*75+2*75 即可

75*102 简便75*102 =75*(100+2)=75*100+75*2=7500+150=7650

75乘以(100+2)=7500+150=7650

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