用你喜欢的方法计算．
9+99+999+9999+99999
124.68+324.68+524.68+724.68+924.68
998×999999﹣999×998998
17.48×37﹣174.8×1.9+17.48×82．
相关试题
用你喜欢的方法计算．
9+99+999+9999+99999
124.68+324.68+524.68+724.68+924.68
998×999999﹣999×998998
17.48×37﹣174.8×1.9+17.48×82．
+
=
÷3= 20×
=
×25×
=
÷
=
×
= 121×
= 1÷
×
×
×0=
×1.6=（
+
）×12=
=
= 81×
= 0÷
=
=
=
=
=
=
÷2=
﹣
= 12÷
=
÷0.8= 12÷
= 4﹣2
÷14×
=
+
=
﹣
= 12×
=
÷
=
+9=
÷3=
×14= 20÷
=
×8= 14×
÷14×
+
= 6÷
=
×0.25=
÷
=
×
= 9﹣
=
÷42= 1÷
=
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