题目内容
直接写出得数
| 5.17+1.96+4.83= | 12.5×0.34×8= | 5.01×101-5.01= | ﹙
| 5×(
|
(1)5.17+1.96+4.83,
=(5.17+4.83)+1.96,
=10+1.96,
=11.96;
(2)12.5×0.34×8,
=12.5×8×0.34,
=100×0.34,
=34;
(3)5.01×101-5.01,
=5.01×(101-1),
=5.01×100,
=501;
(4)﹙
-
)×
,
=
×
,
=
;
(5)5×(
-
)×6,
=(5×6)×(
-
),
=5×6×
-5×6×
,
=5×
×6-6×
×5,
=1×6-1×5,
=6-5,
=1.
=(5.17+4.83)+1.96,
=10+1.96,
=11.96;
(2)12.5×0.34×8,
=12.5×8×0.34,
=100×0.34,
=34;
(3)5.01×101-5.01,
=5.01×(101-1),
=5.01×100,
=501;
(4)﹙
| 7 |
| 12 |
| 1 |
| 3 |
| 2 |
| 7 |
=
| 1 |
| 4 |
| 2 |
| 7 |
=
| 1 |
| 14 |
(5)5×(
| 1 |
| 5 |
| 1 |
| 6 |
=(5×6)×(
| 1 |
| 5 |
| 1 |
| 6 |
=5×6×
| 1 |
| 5 |
| 1 |
| 6 |
=5×
| 1 |
| 5 |
| 1 |
| 6 |
=1×6-1×5,
=6-5,
=1.
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