题目内容
(1)4÷
-
÷4
(2)1÷[(
-
)×24]
(3)6÷
+4÷
(4)
×
+
÷
(5)(
+
)÷
-11
(6)(19+
)×
.
| 4 |
| 5 |
| 4 |
| 5 |
(2)1÷[(
| 7 |
| 12 |
| 1 |
| 6 |
(3)6÷
| 2 |
| 3 |
| 1 |
| 3 |
(4)
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
| 18 |
| 7 |
(5)(
| 3 |
| 4 |
| 2 |
| 9 |
| 1 |
| 36 |
(6)(19+
| 1 |
| 20 |
| 1 |
| 18 |
(1)4÷
-
÷4
=4×
-
×
=5-
=4
;
(2)1÷[(
-
)×24]
=1÷[
×24]
=1÷10
=
;
(3)6÷
+4÷
=6×
+4×
=9+12
=21;
(4)
×
+
÷
=
+
×
=
+
=
=
;
(5))(
+
)÷
-11
=
×36-11
=35-11
=24;
(6))(19+
)×
.
=19×
+
×
=1
+
=1
;
| 4 |
| 5 |
| 4 |
| 5 |
=4×
| 5 |
| 4 |
| 4 |
| 5 |
| 1 |
| 4 |
=5-
| 1 |
| 5 |
=4
| 4 |
| 5 |
(2)1÷[(
| 7 |
| 12 |
| 1 |
| 6 |
=1÷[
| 5 |
| 12 |
=1÷10
=
| 1 |
| 10 |
(3)6÷
| 2 |
| 3 |
| 1 |
| 3 |
=6×
| 3 |
| 2 |
| 3 |
| 1 |
=9+12
=21;
(4)
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
| 18 |
| 7 |
=
| 7 |
| 72 |
| 3 |
| 4 |
| 7 |
| 18 |
=
| 7 |
| 72 |
| 7 |
| 24 |
=
| 28 |
| 72 |
=
| 7 |
| 18 |
(5))(
| 3 |
| 4 |
| 2 |
| 9 |
| 1 |
| 36 |
=
| 35 |
| 36 |
=35-11
=24;
(6))(19+
| 1 |
| 20 |
| 1 |
| 18 |
=19×
| 1 |
| 18 |
| 1 |
| 20 |
| 1 |
| 18 |
=1
| 1 |
| 18 |
| 1 |
| 360 |
=1
| 7 |
| 120 |
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