问题
填空题
3.6×
|
答案
3.6×
+2 7
×18 19
+4 7
×4 19
,1 7
=3.6×
+2 7
×18 19
×2+2 7
×2×2 19
,1 7
=
×(3.6+2 7
+36 19
),2 19
=
×5.6,2 7
=1.6.
3.6×
|
3.6×
+2 7
×18 19
+4 7
×4 19
,1 7
=3.6×
+2 7
×18 19
×2+2 7
×2×2 19
,1 7
=
×(3.6+2 7
+36 19
),2 19
=
×5.6,2 7
=1.6.