题目内容
简算
11.82÷(3.94+2×3.94) |
|
(1)11.82÷(3.94+2×3.94),
=11.82÷[3.94×(1+2)],
=11.82÷[3.94×3],
=11.82÷11.82,
=1;
(2)
-
+
-
.
=
+
-(
+
),
=1-1,
=0.
=11.82÷[3.94×(1+2)],
=11.82÷[3.94×3],
=11.82÷11.82,
=1;
(2)
8 |
15 |
17 |
29 |
7 |
15 |
12 |
29 |
=
8 |
15 |
7 |
15 |
17 |
29 |
12 |
29 |
=1-1,
=0.
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