题目内容
【题目】57+28= 0.12×1000= 240﹣170= 13×0.4= 69÷23=
0.8×0.5= 0.24÷2= 4.6+3.9= 303÷3= 23÷24=
0.049÷10= 105﹣99=
+
=
+
=
﹣
=
2﹣
= 0.2÷
= 41×82=
【答案】85,120,70,5.2,3,0.4,0.12,8.5,101,
,0.0049,6,
,
,0.2,1
,1,3362
【解析】
试题分析:根据整数、小数和分数加减乘除的计算方法进行计算即可.
解:57+28=85, 0.12×1000=120, 240﹣170=70, 13×0.4=5.2, 69÷23=3,
0.8×0.5=0.4, 0.24÷2=0.12, 4.6+3.9=8.5, 303÷3=101, 23÷24=
,
0.049÷10=0.0049, 105﹣99=6,
+
=
,
+
=
,
﹣
=0.2,
2﹣
=1
, 0.2÷
=1, 41×82=3362.
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