早教吧作业答案频道 -->其他-->
计算下面各题.(能够简便计算的要求简便计算)①730-240÷15×16②79×511+29×511③34+34×3④[1一(12-14)]×23.
题目详情
计算下面各题.(能够简便计算的要求简便计算)
①730-240÷15×16
②
×
+
×
③
+
×3
④[1一(
-
)]×
.
×
+
×
③
+
×3
④[1一(
-
)]×
.
7 7 9 9
5 5 11 11
2 2 9 9
5 5 11 11
+
×3
④[1一(
-
)]×
.
3 3 4 4
×3
④[1一(
-
)]×
.
3 3 4 4
-
)]×
.
1 1 2 2
)]×
.
1 1 4 4
.
2 2 3 3
①730-240÷15×16
②
7 |
9 |
5 |
11 |
2 |
9 |
5 |
11 |
③
3 |
4 |
3 |
4 |
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
7 |
9 |
5 |
11 |
2 |
9 |
5 |
11 |
③
3 |
4 |
3 |
4 |
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
7 |
9 |
5 |
11 |
2 |
9 |
5 |
11 |
3 |
4 |
3 |
4 |
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
3 |
4 |
3 |
4 |
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
3 |
4 |
1 |
2 |
1 |
4 |
2 |
3 |
1 |
2 |
1 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
2 |
3 |
▼优质解答
答案和解析
①730-240÷15×16,
=730-16×16,
=730-256,
=474;
②
×
+
×
,
=(
+
)×
,
=1×
,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
7 7 79 9 9×
5 5 511 11 11+
2 2 29 9 9×
5 5 511 11 11,
=(
+
)×
,
=1×
,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
7 7 79 9 9+
)×
,
=1×
,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
2 2 29 9 9)×
,
=1×
,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
5 5 511 11 11,
=1×
,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
5 5 511 11 11,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
5 5 511 11 11;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
3 3 34 4 4+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
3 3 34 4 4×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
3 3 34 4 4×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
3 3 34 4 4×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
1 1 12 2 2-
)]×
,
=[1-
]×
,
=
×
,
=
.
1 1 14 4 4)]×
,
=[1-
]×
,
=
×
,
=
.
2 2 23 3 3,
=[1-
]×
,
=
×
,
=
.
1 1 14 4 4]×
,
=
×
,
=
.
2 2 23 3 3,
=
×
,
=
.
3 3 34 4 4×
,
=
.
2 2 23 3 3,
=
.
1 1 12 2 2.
=730-16×16,
=730-256,
=474;
②
7 |
9 |
5 |
11 |
2 |
9 |
5 |
11 |
=(
7 |
9 |
2 |
9 |
5 |
11 |
=1×
5 |
11 |
=
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
7 |
9 |
5 |
11 |
2 |
9 |
5 |
11 |
=(
7 |
9 |
2 |
9 |
5 |
11 |
=1×
5 |
11 |
=
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
7 |
9 |
2 |
9 |
5 |
11 |
=1×
5 |
11 |
=
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
2 |
9 |
5 |
11 |
=1×
5 |
11 |
=
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
5 |
11 |
=1×
5 |
11 |
=
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
5 |
11 |
=
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
5 |
11 |
③
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
3 |
4 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
3 |
4 |
=
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
3 |
4 |
=
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
3 |
4 |
=3;
④[1一(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
3 |
4 |
2 |
3 |
=
1 |
2 |
2 |
3 |
=
1 |
2 |
1 |
2 |
看了 计算下面各题.(能够简便计算...的网友还看了以下:
研究下列算式,你会发现什么规律?1×3+1=4=2,2×4+1=9=3,3×5+1=1研究下列算式 2020-04-09 …
这三题计算怎么算,(1)根号24除以根号3-根号6×根号3分之1 (2)(根号3+1)(根号3-1 2020-05-15 …
算一算,想一想,填一填.数学题题目见补充↓↓算一算,想一想,填一填.1+2+1=41+2+3+2+ 2020-06-06 …
1/2+1/(2+3)+1/(2+3+4)+.+1/(2+4+5+...+200)=?能否简便?下 2020-07-16 …
计算下列各式(1)1-1/2^2(2)(1-1/2^2)(1-1/3^2)(3)(1-1/2^2) 2020-07-18 …
根据以下算是:1/1*2=1/2,1/1-1/2=1/2;1/2*3=1/6,1/2-1/3=1/ 2020-07-19 …
分数混合运算,脱式计算,能简算的要简算!一个小时内打出来加分!1.5/6+2/9*3/4+2/32 2020-07-19 …
(1减3/1)的平方是先算1的平方和3/1的平方.还是直接算3/1的平方,然后再用1减去3/1的平 2020-07-31 …
5道简便运算题能简便的就简便计算要有算式与题目(1)(3/4÷3/5+1/4)×6/13(2)35÷ 2021-01-02 …
6道有理数混合运算那位同学帮我算计算题?1.|-7/4-(-3/4)|-(|-5/4|-|-3/4| 2021-01-22 …