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0.5x4 0.5x4的脱式

=2除0.5乘4=4乘4=16

用0.5除以0.5的商城4乘4的积就得出了答案是十六.

3.6十1.3x4=3.6+5.2=8.8

0.5x2.33x8=(0.5*8)*2.33=4*2.33=9.32

=1

脱式计算912÷0.5x0.4=1824*0.4=729.6

0.5*4*4.66=9.32

12.8*0.5x4.8÷1.5=6.4x4.8÷1.5=30.72÷1.5=20.48

5,.83x0.5x4=5.83x(0.5x4)=5.83x2=11.66

解,原式=0.5x12.5x(8x0.4x2)x2.5 =(0.5x2)x(12.5x8)x(0.4x2.5) =1x100x1 =100

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