题目内容
计算:(能简便的就用简便方法计算)
(1)(
-
)×(
+
)
(2)95.6×18-95
×8
(3)(
-0.005×700)÷
(4)[2-(
-0.5)÷
]×
.
(1)(
| 7 |
| 8 |
| 5 |
| 16 |
| 5 |
| 9 |
| 2 |
| 3 |
(2)95.6×18-95
| 3 |
| 5 |
(3)(
| 9 |
| 2 |
| 1 |
| 2 |
(4)[2-(
| 2 |
| 3 |
| 5 |
| 12 |
| 3 |
| 8 |
(1)(
-
)×(
+
)
=(
-
)×(
+
),
=
×
,
=
;
(2)95.6×18-95
×8
=95.6×18-95.6×8,
=(18-8)×95.6,
=10×95.6,
=956;
(3)(
-0.005×700)÷
=(4.5-3.5)×2,
=1×2,
=2;
(4)[2-(
-0.5)÷
]×
=[2-(
-
)×
]×
,
=[2-(
-
)×
]×
,
=[2-
×
]×
,
=[2-
]×
,
=
×
,
=
.
| 7 |
| 8 |
| 5 |
| 16 |
| 5 |
| 9 |
| 2 |
| 3 |
=(
| 14 |
| 16 |
| 5 |
| 16 |
| 5 |
| 9 |
| 6 |
| 9 |
=
| 9 |
| 16 |
| 11 |
| 9 |
=
| 11 |
| 16 |
(2)95.6×18-95
| 3 |
| 5 |
=95.6×18-95.6×8,
=(18-8)×95.6,
=10×95.6,
=956;
(3)(
| 9 |
| 2 |
| 1 |
| 2 |
=(4.5-3.5)×2,
=1×2,
=2;
(4)[2-(
| 2 |
| 3 |
| 5 |
| 12 |
| 3 |
| 8 |
=[2-(
| 2 |
| 3 |
| 1 |
| 2 |
| 12 |
| 5 |
| 3 |
| 8 |
=[2-(
| 4 |
| 6 |
| 3 |
| 6 |
| 12 |
| 5 |
| 3 |
| 8 |
=[2-
| 1 |
| 6 |
| 12 |
| 5 |
| 3 |
| 8 |
=[2-
| 2 |
| 5 |
| 3 |
| 8 |
=
| 8 |
| 5 |
| 3 |
| 8 |
=
| 3 |
| 5 |
练习册系列答案
相关题目