5.6×69.32+138.64×0.05+693.2×0.43-------------------记住!

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5.6×69.32+138.64×0.05+693.2×0.43-------------------记住!5.6×69.32+138.64×0.05+693.2×0.43--------------

5.6×69.32+138.64×0.05+693.2×0.43-------------------记住!
5.6×69.32+138.64×0.05+693.2×0.43
-------------------
记住!

5.6×69.32+138.64×0.05+693.2×0.43-------------------记住!
5.6×69.32+138.64×0.05+693.2×0.43
=5.6×69.32+69.32*2*0.05+693.2*0.1*10*0.43
=5.6×69.32+69.32*0.1+69.32*4.3
=69.32*(5.6+0.1+4.3)
=69.32*10
=693.2

=5.6*69.32+138.64*0.05+69.32*4.3
=9.9*69.32+69.32*0.1
=69.32*10
=693.2

69.2×2=138.64, 138.64 × 5=693.2,后面自己算了

5.6×69.32+138.64×0.05+693.2×0.43
=5.6*69.32+69.34*2*0.05+69.32*4.3
=69.32*(5.6+0.1+4.3)
=69.32*1 0
=693.2

=5.6*69.32+138.64*0.05+69.32*4.3
=9.9*69.32+69.32*0.1
=69.32*10
=693.2