| 23+19= | 50-17= | 11.7+13= | 2.2×0.2= | - = |
× = | ÷ = | + = | + = | ÷ = |
+ = | 15× = | 10-0.6= | 28.4÷0.4= | - = |
-
=
×
=
÷
=
+
=
+
=1
÷
=
=
15×
=9 10-0.6=9.4 28.4÷0.4=71
-
=
分析:本题据计算法则计算即可.
点评:完成本题要细心,找出每组数据的特点,快速准确的得出题目.