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1： 0.5 0.3 8 3.9 40 0.48 0.6 0.021
2： 3.2 10 1.4 4
3： ＞ ＜ ＜ ＞
4： 0.0111 1.2
5： 34.6 1.4
6： 35.1×1.6+35.1×0.4 0.25×1.58×4 =35.1×﹙1.6+0.4﹚ =0.25×4×1.58 =35.1×2 =1×1.58 =70.2 =1.58
78.5×0.8--8.5×0.8 ﹙2--0.125﹚×8 =0.8×﹙78.5--8.5﹚ =2×8--0.125×8 =0.8×70 =16--1 =56 =15
99×1.24+1.24 6÷0.25÷0.4 =1.24×﹙99+1﹚ =6÷﹙0.25×0.4﹚ =1.24×100 =6÷0.1 =124 =60
3.6÷[0.25×﹙17.3+30.7﹚] =3.6÷[0.25×48] =3.6÷12 =0.3 | 