题目内容
8.16-1.26÷0.3×1.5
6.25×7+2×6
-6
.
4.75×1.36×0.375.÷(4
×1
×
)
+
+
+
+
[(1
-0.375)×
+
×
]÷2
.
6.25×7+2×6
| 1 |
| 4 |
| 1 |
| 4 |
4.75×1.36×0.375.÷(4
| 3 |
| 4 |
| 9 |
| 25 |
| 3 |
| 8 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
[(1
| 1 |
| 4 |
| 5 |
| 26 |
| 1 |
| 8 |
| 5 |
| 26 |
| 4 |
| 13 |
(1)8.16-1.26÷0.3×1.5,
=8.16-4.2×1.5,
=8.16-6.3,
=1.86;
(2)6.25×7+2×6
-6
,
=6
×7+2×6
-6
,
=6
×(7+2-1),
=6
×8,
=50;
(3)4.75×1.36×0.375÷(4
×1
×
),
=4.75×1.36×0.375÷4.75÷1.36÷0.375,
=(4.75÷4.75)×(1.36÷1.36)×(0.375÷0.375),
=1×1×1,
=1;
(4)
+
+
+
+
,
=
-
+
-
+
-
+
-
+
-
,
=
-
,
=
;
(5)[(1
-0.375)×
+
×
]÷2
,
=[
×
+
×
]÷2
,
=[(
+
)×
]÷2
,
=(1×
)÷2
,
=
÷2
,
=
.
=8.16-4.2×1.5,
=8.16-6.3,
=1.86;
(2)6.25×7+2×6
| 1 |
| 4 |
| 1 |
| 4 |
=6
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
=6
| 1 |
| 4 |
=6
| 1 |
| 4 |
=50;
(3)4.75×1.36×0.375÷(4
| 3 |
| 4 |
| 9 |
| 25 |
| 3 |
| 8 |
=4.75×1.36×0.375÷4.75÷1.36÷0.375,
=(4.75÷4.75)×(1.36÷1.36)×(0.375÷0.375),
=1×1×1,
=1;
(4)
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
=
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 7 |
=
| 1 |
| 2 |
| 1 |
| 7 |
=
| 5 |
| 14 |
(5)[(1
| 1 |
| 4 |
| 5 |
| 26 |
| 1 |
| 8 |
| 5 |
| 26 |
| 4 |
| 13 |
=[
| 7 |
| 8 |
| 5 |
| 26 |
| 1 |
| 8 |
| 5 |
| 26 |
| 4 |
| 13 |
=[(
| 7 |
| 8 |
| 1 |
| 8 |
| 5 |
| 26 |
| 4 |
| 13 |
=(1×
| 5 |
| 26 |
| 4 |
| 13 |
=
| 5 |
| 26 |
| 4 |
| 13 |
=
| 1 |
| 12 |
练习册系列答案
相关题目