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用你喜欢的方法计算.①496÷(530-499)×17②(2+1.25×0.8)÷6③(23+14-56)×24④78÷[(14+15)×56].
题目详情
用你喜欢的方法计算. ①496÷(530-499)×17 | ②(2+1.25×0.8)÷6 | ||||||||||||||
③(
| ④
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用你喜欢的方法计算. ①496÷(530-499)×17 | ②(2+1.25×0.8)÷6 | ||||||||||||||
③(
| ④
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①496÷(530-499)×17
②(2+1.25×0.8)÷6
①496÷(530-499)×17
②(2+1.25×0.8)÷6
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▼优质解答
答案和解析
①496÷(530-499)×17,
=496÷31×17,
=16×17,
=272;
②(2+1.25×0.8)÷6,
=(2+1)÷6,
=3÷6,
=0.5;
③(
+
-
)×24,
=
×24+
×24-
×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
2 2 23 3 3+
-
)×24,
=
×24+
×24-
×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
1 1 14 4 4-
)×24,
=
×24+
×24-
×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
5 5 56 6 6)×24,
=
×24+
×24-
×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
2 2 23 3 3×24+
×24-
×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
1 1 14 4 4×24-
×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
5 5 56 6 6×24,
=16+6-20,
=2;
④
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
7 7 78 8 8÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
1 1 14 4 4+
)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
1 1 15 5 5)×
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
5 5 56 6 6],
=
÷[
×
],
=
÷
,
=
×
,
=
.
7 7 78 8 8÷[
×
],
=
÷
,
=
×
,
=
.
9 9 920 20 20×
],
=
÷
,
=
×
,
=
.
5 5 56 6 6],
=
÷
,
=
×
,
=
.
7 7 78 8 8÷
,
=
×
,
=
.
3 3 38 8 8,
=
×
,
=
.
7 7 78 8 8×
,
=
.
8 8 83 3 3,
=
.
7 7 73 3 3.
=496÷31×17,
=16×17,
=272;
②(2+1.25×0.8)÷6,
=(2+1)÷6,
=3÷6,
=0.5;
③(
2 |
3 |
1 |
4 |
5 |
6 |
=
2 |
3 |
1 |
4 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
8 |
3 |
8 |
=
7 |
8 |
8 |
3 |
=
7 |
3 |
2 |
3 |
1 |
4 |
5 |
6 |
=
2 |
3 |
1 |
4 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
8 |
3 |
8 |
=
7 |
8 |
8 |
3 |
=
7 |
3 |
1 |
4 |
5 |
6 |
=
2 |
3 |
1 |
4 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
8 |
3 |
8 |
=
7 |
8 |
8 |
3 |
=
7 |
3 |
5 |
6 |
=
2 |
3 |
1 |
4 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
8 |
3 |
8 |
=
7 |
8 |
8 |
3 |
=
7 |
3 |
2 |
3 |
1 |
4 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
8 |
3 |
8 |
=
7 |
8 |
8 |
3 |
=
7 |
3 |
1 |
4 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
8 |
3 |
8 |
=
7 |
8 |
8 |
3 |
=
7 |
3 |
5 |
6 |
=16+6-20,
=2;
④
7 |
8 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
8 |
9 |
20 |
5 |
6 |
=
7 |
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3 |
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=
7 |
8 |
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3 |
=
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3 |
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8 |
1 |
4 |
1 |
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6 |
=
7 |
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9 |
20 |
5 |
6 |
=
7 |
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3 |
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=
7 |
8 |
8 |
3 |
=
7 |
3 |
1 |
4 |
1 |
5 |
5 |
6 |
=
7 |
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9 |
20 |
5 |
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=
7 |
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3 |
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=
7 |
8 |
8 |
3 |
=
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3 |
1 |
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=
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=
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=
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=
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=
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=
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3 |
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=
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5 |
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=
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3 |
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=
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3 |
=
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3 |
9 |
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5 |
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=
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=
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=
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8 |
3 |
=
7 |
3 |
8 |
3 |
=
7 |
3 |
7 |
3 |
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