问题
解答题
|
答案
(1)X÷3=4,
X÷3×3=4×3,
X=12;
(2)410+X=740,
410+X-410=740-410,
X=330;
(3)0.8X=0.56,
0.8X÷0.8=0.56÷0.8,
X=0.7;
(4)X-
=5 6
,1 12
X-
+5 6
=5 6
+1 12
,5 6
X=
.11 12
|
(1)X÷3=4,
X÷3×3=4×3,
X=12;
(2)410+X=740,
410+X-410=740-410,
X=330;
(3)0.8X=0.56,
0.8X÷0.8=0.56÷0.8,
X=0.7;
(4)X-
=5 6
,1 12
X-
+5 6
=5 6
+1 12
,5 6
X=
.11 12