能简算的要简算.
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能简算的要简算.
能简算的要简算.
能简算的要简算.
0.27×44+0.27×57-0.24×1
=27
27
0.27x100x.044+0.27x10x5.7-0.27=0.27x(44+57-1)=0.27x100=27
4.4x2.7+2.7x5.7-2.7x0.1
=2.7x(4.4+5.7+-0.1)
=2.7x10
=27
4.4X2.7+2.7X5.7-2.7X0.1=2.7X(4.4+5.7-0.1)=2.7X(4.4-0.1+5.7)=2.7*10=27