| 275+0= | 700×4= | 600×7= | + = |
| 123×2= | 465×0= | 85÷5= | 1- = |
| 972-200= | 486+14= | 576÷2= | - = |
+
=1,123×2=246,465×0=0,85÷5=17,1-
=
,972-200=772,486+14=500,576÷2=288,
-
=
.故答案为:275,2800,4200,1,246,0,17,
,772,500,288,
.分析:根据整数和分数四则运算的计算法则,直接进行口算即可.
点评:此题主要考查整数和分数四则运算的计算法则,注意0与任何数相乘都得0.