题目内容
(1)(
-
×99)÷
(2)
×
+
×
(3)(16×
+4)÷
.
| 1 |
| 4 |
| 1 |
| 4 |
| 25 |
| 24 |
(2)
| 4 |
| 7 |
| 8 |
| 9 |
| 3 |
| 7 |
| 8 |
| 9 |
(3)(16×
| 3 |
| 8 |
| 2 |
| 7 |
(1)(
+
×99)÷
=
×100×
,
=24;
(2)
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)(16×
+4)÷
,
=(6+4)×
,
=10×
,
=35.
| 1 |
| 4 |
| 1 |
| 4 |
| 25 |
| 24 |
=
| 1 |
| 4 |
| 24 |
| 25 |
=24;
(2)
| 4 |
| 7 |
| 8 |
| 9 |
| 3 |
| 7 |
| 8 |
| 9 |
=(
| 4 |
| 7 |
| 3 |
| 7 |
| 8 |
| 9 |
=1×
| 8 |
| 9 |
=
| 8 |
| 9 |
(3)(16×
| 3 |
| 8 |
| 2 |
| 7 |
=(6+4)×
| 7 |
| 2 |
=10×
| 7 |
| 2 |
=35.
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