题目内容
(1)直接写得数:
÷
=______;
×18=______;
+
=______;
6-
=______;
×
=______;
×
=______;
(2)解方程:
①x÷
=
;
②4.5-
x=1
.
| 1 |
| 4 |
| 3 |
| 5 |
| 2 |
| 9 |
| 3 |
| 10 |
| 9 |
| 10 |
6-
| 5 |
| 8 |
| 5 |
| 2 |
| 3 |
| 7 |
| 3 |
| 7 |
| 3 |
| 7 |
(2)解方程:
①x÷
| 27 |
| 4 |
| 20 |
| 63 |
②4.5-
| 2 |
| 3 |
| 1 |
| 2 |
(1)
,4,
,5
,
,
,
(2)x÷
=
,
∴x=
×
,
∴x=
;
4.5-
x=1
,
-
=
x,
x=3,
∴x=
.
| 5 |
| 12 |
| 6 |
| 5 |
| 3 |
| 8 |
| 15 |
| 14 |
| 9 |
| 49 |
(2)x÷
| 27 |
| 4 |
| 20 |
| 63 |
∴x=
| 20 |
| 63 |
| 27 |
| 4 |
∴x=
| 15 |
| 7 |
4.5-
| 2 |
| 3 |
| 1 |
| 2 |
| 9 |
| 2 |
| 3 |
| 2 |
| 2 |
| 3 |
| 2 |
| 3 |
∴x=
| 9 |
| 2 |
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