题目内容
求满足下面等式的方框中的数:(2
+□)÷3
-0.4=
,□=______.
| 2 |
| 3 |
| 3 |
| 4 |
| 32 |
| 45 |
设□为x,根据题意得
(2
+x)÷ 3
-0.4=
( 2
+x)÷ 3
=
+0.4,
( 2
+x)=
×3
,
x=
- 2
,
x=1
.
故答案为1
.
(2
| 2 |
| 3 |
| 3 |
| 4 |
| 32 |
| 45 |
( 2
| 2 |
| 3 |
| 3 |
| 4 |
| 32 |
| 45 |
( 2
| 2 |
| 3 |
| 10 |
| 9 |
| 3 |
| 4 |
x=
| 25 |
| 6 |
| 2 |
| 3 |
x=1
| 1 |
| 2 |
故答案为1
| 1 |
| 2 |
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