题目内容
2010×
+2010÷15×13
5.75-3.09-1.75
×(
-
)÷
×[
÷(
-
)].
| 2 |
| 15 |
5.75-3.09-1.75
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
| 10 |
| 9 |
| 1 |
| 6 |
| 9 |
| 16 |
| 7 |
| 16 |
| 1 |
| 4 |
(1)2010×
+2010÷15×13,
=2010×
+2010×
,
=2010×(
+
),
=2010;
(2)5.75-3.09-1.75,
=5.75-1.75-3.09,
=4-3.09,
=0.91;
(3)
×(
-
)÷
,
=
×(
-
)×
,
=
×
-
×
,
=
-
,
=
-
,
=
;
(4)
×[
÷(
-
)],
=
×[
÷(
-
)],
=
×[
÷
],
=
×[
×
],
=
×3,
=
.
| 2 |
| 15 |
=2010×
| 2 |
| 15 |
| 13 |
| 15 |
=2010×(
| 2 |
| 15 |
| 13 |
| 15 |
=2010;
(2)5.75-3.09-1.75,
=5.75-1.75-3.09,
=4-3.09,
=0.91;
(3)
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
| 10 |
| 9 |
=
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
| 9 |
| 10 |
=
| 3 |
| 5 |
| 1 |
| 4 |
| 3 |
| 5 |
| 1 |
| 6 |
=
| 3 |
| 20 |
| 1 |
| 10 |
=
| 3 |
| 20 |
| 2 |
| 20 |
=
| 1 |
| 20 |
(4)
| 1 |
| 6 |
| 9 |
| 16 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 1 |
| 6 |
| 9 |
| 16 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 1 |
| 6 |
| 9 |
| 16 |
| 3 |
| 16 |
=
| 1 |
| 6 |
| 9 |
| 16 |
| 16 |
| 3 |
=
| 1 |
| 6 |
=
| 1 |
| 2 |
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