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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
举报
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.
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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



- 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.






看了 (2014•慈利县模拟)用自...的网友还看了以下:
5/7+1/8=?2/3+5/9=?3/8+7/12=?4/5-3/10=?8/9-5/7=?11 2020-05-17 …
45÷5=9表示45里面有5个9,也可以表示45里面有9个5,那么选择题题目是45里面有9个5.A 2020-06-06 …
判断:1.5*9和9*5都可用口诀“五九四十五”计算.2.小明比小红高5米.3.6*8读作8乘6. 2020-06-09 …
在5.91、5..9、5.9.1.2、5.91212、5.18276…这几个数中,有限小数是,无限 2020-06-27 …
谁帮我解下这些数字的意思.7,5,9;23,15;1,14;17,21,14;7,1,14;26, 2020-07-16 …
30÷5=42÷6=5×9÷5=64÷8=32÷4=81÷9=7÷7=25÷5=56÷7=24÷8 2020-07-17 …
6÷3/8–3/8÷64/7×5/9+3/7×5/95/2-(3/2+4/5)7/8+(1/8+1 2020-07-18 …
计算!(急)1/4+1/61/7-1/84-3/51-1/6+1/335×3/1424÷3/83/ 2020-07-19 …
0.25×12.5×3.27.9×25+31×2.59999×2222+3333×33340.25 2020-07-24 …
有一个容量为66的样本,数据的分组及各组的频数如下:分组[1.5,3.5)[3.5,5.5)[5.5 2020-11-06 …