题目内容
12
| 24
| 1
| ||||||||||||||
(
| 4
| 12.25-(6
|
(1)12
-5
-4
,
=12
-(5
+4
),
=12
-10,
=2
;
(2)24
÷6,
=(24+
)÷6,
=24×
+
×
,
=4+
,
=4
;
(3)1
×7÷1
×7,
=1
÷1
×7×7,
=1×7×7,
=49;
(4)(
+
)×35,
=
×35+
×35,
=28+30,
=58;
(5)4
×
×1
×
,
=
×
×
×
,
=
;
(6)12.25-(6
+2.25),
=12.25-2.25-6
,
=10-6
,
=3
.
| 5 |
| 6 |
| 5 |
| 11 |
| 6 |
| 11 |
=12
| 5 |
| 6 |
| 5 |
| 11 |
| 6 |
| 11 |
=12
| 5 |
| 6 |
=2
| 5 |
| 6 |
(2)24
| 6 |
| 7 |
=(24+
| 6 |
| 7 |
=24×
| 1 |
| 6 |
| 6 |
| 7 |
| 1 |
| 6 |
=4+
| 1 |
| 7 |
=4
| 1 |
| 7 |
(3)1
| 2 |
| 5 |
| 2 |
| 5 |
=1
| 2 |
| 5 |
| 2 |
| 5 |
=1×7×7,
=49;
(4)(
| 4 |
| 5 |
| 6 |
| 7 |
=
| 4 |
| 5 |
| 6 |
| 7 |
=28+30,
=58;
(5)4
| 2 |
| 3 |
| 3 |
| 5 |
| 1 |
| 3 |
| 3 |
| 7 |
=
| 14 |
| 3 |
| 3 |
| 5 |
| 4 |
| 3 |
| 3 |
| 7 |
=
| 8 |
| 5 |
(6)12.25-(6
| 3 |
| 7 |
=12.25-2.25-6
| 3 |
| 7 |
=10-6
| 3 |
| 7 |
=3
| 4 |
| 7 |
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