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(2014•慈利县模拟)用自己喜欢的方法计算①49÷[23-(35-13)×56];②34×29+79×75%;③467×99-533;④73115×18.
题目详情
(2014•慈利县模拟)用自己喜欢的方法计算
①
÷[
-(
-
)×
];
②
×
+
×75%;
③467×99-533;
④73
×
.
÷[
-(
-
)×
];
②
×
+
×75%;
③467×99-533;
④73
×
.
4 4 9 9
-(
-
)×
];
②
×
+
×75%;
③467×99-533;
④73
×
.
2 2 3 3
-
)×
];
②
×
+
×75%;
③467×99-533;
④73
×
.
3 3 5 5
)×
];
②
×
+
×75%;
③467×99-533;
④73
×
.
1 1 3 3
];
②
×
+
×75%;
③467×99-533;
④73
×
.
5 5 6 6
×
+
×75%;
③467×99-533;
④73
×
.
3 3 4 4
+
×75%;
③467×99-533;
④73
×
.
2 2 9 9
×75%;
③467×99-533;
④73
×
.
7 7 9 9
×
.
1 1 15 15
.
1 1 8 8
①
4 |
9 |
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
②
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
4 |
9 |
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
②
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
4 |
9 |
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
②
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
②
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
3 |
5 |
1 |
3 |
5 |
6 |
②
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
1 |
3 |
5 |
6 |
②
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
5 |
6 |
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
3 |
4 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
2 |
9 |
7 |
9 |
③467×99-533;
④73
1 |
15 |
1 |
8 |
7 |
9 |
1 |
15 |
1 |
8 |
1 |
15 |
1 |
8 |
1 |
8 |
▼优质解答
答案和解析
①
÷[
-(
-
)×
]
=
÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
4 4 49 9 9÷[
-(
-
)×
]
=
÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
2 2 23 3 3-(
-
)×
]
=
÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
3 3 35 5 5-
)×
]
=
÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
1 1 13 3 3)×
]
=
÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
5 5 56 6 6]
=
÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
4 4 49 9 9÷[
-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
2 2 23 3 3-
×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
4 4 415 15 15×
]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
5 5 56 6 6]
=
÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
4 4 49 9 9÷[
-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
2 2 23 3 3-
]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
2 2 29 9 9]
=
÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
4 4 49 9 9÷
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
4 4 49 9 9
=1;
②
×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
3 3 34 4 4×
+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
2 2 29 9 9+
×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
7 7 79 9 9×75%
=
×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
3 3 34 4 4×(
+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
2 2 29 9 9+
)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
7 7 79 9 9)
=
×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
3 3 34 4 4×1
=
;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
3 3 34 4 4;
③467×99-533
=46233-533
=45700;
④73
×
=(72+
)×
=72×
+
×
=9+
=9
1 1 115 15 15×
=(72+
)×
=72×
+
×
=9+
=9
1 1 18 8 8
=(72+
)×
=72×
+
×
=9+
=9
16 16 1615 15 15)×
=72×
+
×
=9+
=9
1 1 18 8 8
=72×
+
×
=9+
=9
1 1 18 8 8+
×
=9+
=9
16 16 1615 15 15×
=9+
=9
1 1 18 8 8
=9+
=9
2 2 215 15 15
=9
问题解析 问题解析
①先算小括号里的减法,再算中括号里的乘法,然后算中括号里的减法,最后算括号外的除法;
②运用乘法的分配律进行简算;
③先算乘法,再算减法;
④把73
化成72+
,再运用乘法的分配律进行简算. ①先算小括号里的减法,再算中括号里的乘法,然后算中括号里的减法,最后算括号外的除法;
②运用乘法的分配律进行简算;
③先算乘法,再算减法;
④把73
化成72+
,再运用乘法的分配律进行简算.
1 1 115 15 15化成72+
,再运用乘法的分配律进行简算.
16 16 1615 15 15,再运用乘法的分配律进行简算.
名师点评 名师点评
本题考点: 本题考点:
分数的四则混合运算;整数四则混合运算;运算定律与简便运算. 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
考点点评: 考点点评:
本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力. 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
var userCity = "\u4e50\u5c71",
userProvince = "\u56db\u5ddd",
zuowenSmall = "2";
4 |
9 |
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
=
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
4 |
9 |
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
=
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
3 |
3 |
5 |
1 |
3 |
5 |
6 |
=
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
3 |
5 |
1 |
3 |
5 |
6 |
=
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
3 |
5 |
6 |
=
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
5 |
6 |
=
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
4 |
9 |
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
3 |
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
4 |
15 |
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
5 |
6 |
=
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
4 |
9 |
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
3 |
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
9 |
=
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
4 |
9 |
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
4 |
9 |
=1;
②
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
9 |
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
7 |
9 |
=
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
3 |
4 |
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
9 |
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
7 |
9 |
=
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
3 |
4 |
=
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
3 |
4 |
③467×99-533
=46233-533
=45700;
④73
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
15 |
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
8 |
=(72+
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
16 |
15 |
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
8 |
=72×
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
8 |
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
16 |
15 |
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
8 |
=9+
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
2 |
15 |
=9
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
1 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
作业帮用户
2017-09-22
举报
作业帮用户作业帮用户
2017-09-222017-09-22
举报
举报
- 问题解析
- ①先算小括号里的减法,再算中括号里的乘法,然后算中括号里的减法,最后算括号外的除法;
②运用乘法的分配律进行简算;
③先算乘法,再算减法;
④把73
化成72+1 15
,再运用乘法的分配律进行简算.16 15
②运用乘法的分配律进行简算;
③先算乘法,再算减法;
④把73
1 |
15 |
16 |
15 |
②运用乘法的分配律进行简算;
③先算乘法,再算减法;
④把73
1 |
15 |
16 |
15 |
1 |
15 |
16 |
15 |
16 |
15 |
- 名师点评
-
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
-
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
- 本题考点:
- 分数的四则混合运算;整数四则混合运算;运算定律与简便运算.
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
- 考点点评:
- 本题主要考查学生依据四则运算顺序,以及正确运用简便方法解决问题的能力.
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如果2/1△3=2/1×3/2×4/3,5/4△4=5/3×6/4×7/5×8/6那么5/2△5+ 2020-04-27 …
用MATLAB求多元回归方程为什么总是失败?用MATLAB求多元回归方程,代码如下:>> >> y 2020-05-16 …
1+2+3+6+5+4+7+4+4+4+4+4+4+4+4+4+4+4+4+4+4+5+5+2+2 2020-05-21 …
1/1=11/2+2/2+1/2=21/3+2/3+3/3+2/3+1/3=31/4+2/4+3/ 2020-06-02 …
5.4米的竿换把4.5米的手感好于纯4.5米的吗?5.4米的竿换把成4.5米的手感好于纯4.5米的 2020-06-30 …
1,7/8÷5/6×4/21=1/5.2,4/25×(3/4+5/12)=14/75.3,2/7× 2020-07-18 …
直接写出得数.0.5×4÷0.5×4=4.2-4.2×0.5=1.2÷4×1.2÷4=6.3+6.3 2020-11-19 …
直接写出得数.0.6×0.8=2.4×3=3.9÷0.3=5.6÷8=0.63÷0.7=0.45÷3 2020-11-19 …
完成词语:(1)见面生()(2)消灾()难(3)残破不()(4)放任自()(5)慈爱不()(6)不可 2020-12-09 …
词语小能手。情意深厚的爱——热爱1.过分偏心的爱——()2.尊重崇敬的爱——()3.特别亲热的爱—— 2020-12-30 …