题目内容
(1)
| (2)
| (3)
| ||||||||||||||||||
(4)2
| (5)3.74+1
| (6)
|
(1)
+(
-
)
=
+
,
=
;
(2)
-
+
=
-
+
,
=
;
(3)
-(
-
)
=
-(
-
),
=
-
+
,
=
;
(4)2
-(
+0.75)
=2
-(
+
),
=2
-(
+
),
=2
-
,
=
-
,
=
;
(5)3.74+1
+2.26+1
=(3.74+2.26)+(1
+1
),
=6+3,
=9;
(6)
×
÷
=
×
×
,
=3.
| 4 |
| 13 |
| 7 |
| 13 |
| 5 |
| 13 |
=
| 4 |
| 13 |
| 2 |
| 13 |
=
| 6 |
| 13 |
(2)
| 7 |
| 9 |
| 5 |
| 12 |
| 5 |
| 18 |
=
| 28 |
| 36 |
| 15 |
| 36 |
| 10 |
| 36 |
=
| 23 |
| 36 |
(3)
| 11 |
| 15 |
| 4 |
| 5 |
| 4 |
| 3 |
=
| 11 |
| 15 |
| 12 |
| 15 |
| 20 |
| 15 |
=
| 11 |
| 15 |
| 12 |
| 15 |
| 20 |
| 15 |
=
| 19 |
| 15 |
(4)2
| 1 |
| 3 |
| 1 |
| 6 |
=2
| 1 |
| 3 |
| 1 |
| 6 |
| 3 |
| 4 |
=2
| 1 |
| 3 |
| 2 |
| 12 |
| 9 |
| 12 |
=2
| 1 |
| 3 |
| 11 |
| 12 |
=
| 28 |
| 12 |
| 11 |
| 12 |
=
| 17 |
| 12 |
(5)3.74+1
| 4 |
| 9 |
| 5 |
| 9 |
=(3.74+2.26)+(1
| 4 |
| 9 |
| 5 |
| 9 |
=6+3,
=9;
(6)
| 15 |
| 14 |
| 21 |
| 10 |
| 3 |
| 4 |
=
| 15 |
| 14 |
| 21 |
| 10 |
| 4 |
| 3 |
=3.
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