题目内容
脱式计算
(1)4
×0.6+0.6÷
;
(2)1-(
+
)×2;
(3)
÷(1-
)×
;
(4)(
+
)×
+
.
(1)4
| 2 |
| 3 |
| 3 |
| 14 |
(2)1-(
| 1 |
| 6 |
| 1 |
| 7 |
(3)
| 5 |
| 6 |
| 9 |
| 20 |
| 1 |
| 5 |
(4)(
| 24 |
| 19 |
| 16 |
| 17 |
| 1 |
| 8 |
| 15 |
| 17 |
(1)4
×0.6+0.6÷
=
×0.6+0.6×
=
×0.6×2
=5.6
(2)1-(
+
)×2
=1-
×2
=1-
=
(3)
÷(1-
)×
=
÷
×
=
×
×
=
(4)(
+
)×
+
=
×
+
×
+
=
+
+
=
+(
+
)
=
+1
=1
.
| 2 |
| 3 |
| 3 |
| 14 |
=
| 14 |
| 3 |
| 14 |
| 3 |
=
| 14 |
| 3 |
=5.6
(2)1-(
| 1 |
| 6 |
| 1 |
| 7 |
=1-
| 13 |
| 42 |
=1-
| 13 |
| 21 |
=
| 8 |
| 21 |
(3)
| 5 |
| 6 |
| 9 |
| 20 |
| 1 |
| 5 |
=
| 5 |
| 6 |
| 11 |
| 20 |
| 1 |
| 5 |
=
| 5 |
| 6 |
| 20 |
| 11 |
| 1 |
| 5 |
=
| 10 |
| 33 |
(4)(
| 24 |
| 19 |
| 16 |
| 17 |
| 1 |
| 8 |
| 15 |
| 17 |
=
| 24 |
| 19 |
| 1 |
| 8 |
| 16 |
| 17 |
| 1 |
| 8 |
| 15 |
| 17 |
=
| 3 |
| 19 |
| 2 |
| 17 |
| 15 |
| 17 |
=
| 3 |
| 19 |
| 2 |
| 17 |
| 15 |
| 17 |
=
| 3 |
| 19 |
=1
| 3 |
| 19 |
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