计算下面各题,怎样算简便就怎样算. 9.43-2.6+8.57-3.4 12×( 1 4 + 1 6 - 1 3
计算下面各题,怎样算简便就怎样算.9.43-2.6+8.57-3.412×(14+16-13)375+450÷18×25(45+14)÷73+710....
计算下面各题,怎样算简便就怎样算. 9.43-2.6+8.57-3.4 12×( 1 4 + 1 6 - 1 3 ) 375+450÷18×25 ( 4 5 + 1 4 )÷ 7 3 + 7 10 .
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(1)9.43-2.6+8.57-3.4, =(9.43+8.57)-(2.6+3.4), =18-6, =12; (2) 12×(
=12×
=3+2-4, =5-4, =1; (3)375+450÷18×25, =375+25×25, =375+625, =1000; (4) (
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