直接写得数 + = | - = | × = | × = |
× ÷ × = | + = | ×0+3= | 3 +1.75= |
÷ = | ( + )× = |
+
=
;
-
=
;
×
=
;
×
=
;
×
÷
×
=
;
+
=
;
×0+3=3; 3
+1.75=5;
÷
=
; (
+
)×
=
.分析:运用分数加减乘除的运算方法以及运算定律计算即可.
点评:此题考查了通分、约分、四则混合运算的顺序,以及在运算中“0”和“1”的作用.