早教吧作业答案频道 -->其他-->
脱式计算(能简算的要简算)①527×54+54×2227②25×47+37÷52③[2−(1+23)]÷27④(56−34)÷748+127.
题目详情
脱式计算(能简算的要简算)
①
×54+54×
②
×
+
÷
③[2−(1+
)]÷
④(
−
)÷
+
.
①
×54+54×
②
×
+
÷
③[2−(1+
)]÷
④(
−
)÷
+
.
5 5 27 27
22 22 27 27
②
×
+
÷
③[2−(1+
)]÷
④(
−
)÷
+
.
2 2 5 5
4 4 7 7
3 3 7 7
5 5 2 2
③[2−(1+
)]÷
④(
−
)÷
+
.
2 2 3 3
2 2 7 7
④(
−
)÷
+
.
5 5 6 6
3 3 4 4
7 7 48 48
12 12 7 7
①
5 |
27 |
22 |
27 |
②
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
③[2−(1+
2 |
3 |
2 |
7 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
①
5 |
27 |
22 |
27 |
②
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
③[2−(1+
2 |
3 |
2 |
7 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
5 |
27 |
22 |
27 |
②
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
③[2−(1+
2 |
3 |
2 |
7 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
③[2−(1+
2 |
3 |
2 |
7 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
2 |
3 |
2 |
7 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
▼优质解答
答案和解析
①
×54+54×
,
=(
+
)×54,
=54;
②
×
+
÷
,
=
×
+
×
,
=
×(
+
),
=
;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
5 5 527 27 27×54+54×
22 22 2227 27 27,
=(
+
)×54,
=54;
②
×
+
÷
,
=
×
+
×
,
=
×(
+
),
=
;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
5 5 527 27 27+
22 22 2227 27 27)×54,
=54;
②
×
+
÷
,
=
×
+
×
,
=
×(
+
),
=
;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
2 2 25 5 5×
4 4 47 7 7+
3 3 37 7 7÷
5 5 52 2 2,
=
×
+
×
,
=
×(
+
),
=
;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
2 2 25 5 5×
4 4 47 7 7+
3 3 37 7 7×
2 2 25 5 5,
=
×(
+
),
=
;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
2 2 25 5 5×(
4 4 47 7 7+
3 3 37 7 7),
=
;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
2 2 25 5 5;
③[2−(1+
)]÷
,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
. [2−(1+
2 2 23 3 3)]÷
2 2 27 7 7,
=[2−1
]÷
,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
. [2−1
2 2 23 3 3]÷
2 2 27 7 7,
=
÷
,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
1 1 13 3 3÷
2 2 27 7 7,
=
;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
.
7 7 76 6 6;
④(
−
)÷
+
,
=
÷
+
,
=
+
,
=
. (
5 5 56 6 6−
3 3 34 4 4)÷
7 7 748 48 48+
12 12 127 7 7,
=
÷
+
,
=
+
,
=
.
1 1 112 12 12÷
7 7 748 48 48+
12 12 127 7 7,
=
+
,
=
.
4 4 47 7 7+
12 12 127 7 7,
=
.
16 16 167 7 7.
①
5 |
27 |
22 |
27 |
=(
5 |
27 |
22 |
27 |
=54;
②
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
=
2 |
5 |
4 |
7 |
3 |
7 |
2 |
5 |
=
2 |
5 |
4 |
7 |
3 |
7 |
=
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
5 |
27 |
22 |
27 |
=(
5 |
27 |
22 |
27 |
=54;
②
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
=
2 |
5 |
4 |
7 |
3 |
7 |
2 |
5 |
=
2 |
5 |
4 |
7 |
3 |
7 |
=
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
5 |
27 |
22 |
27 |
=54;
②
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
=
2 |
5 |
4 |
7 |
3 |
7 |
2 |
5 |
=
2 |
5 |
4 |
7 |
3 |
7 |
=
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
2 |
5 |
4 |
7 |
3 |
7 |
5 |
2 |
=
2 |
5 |
4 |
7 |
3 |
7 |
2 |
5 |
=
2 |
5 |
4 |
7 |
3 |
7 |
=
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
2 |
5 |
4 |
7 |
3 |
7 |
2 |
5 |
=
2 |
5 |
4 |
7 |
3 |
7 |
=
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
2 |
5 |
4 |
7 |
3 |
7 |
=
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
2 |
5 |
③[2−(1+
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
2 |
3 |
2 |
7 |
=[2−1
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
2 |
3 |
2 |
7 |
=
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
1 |
3 |
2 |
7 |
=
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
7 |
6 |
④(
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
5 |
6 |
3 |
4 |
7 |
48 |
12 |
7 |
=
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
1 |
12 |
7 |
48 |
12 |
7 |
=
4 |
7 |
12 |
7 |
=
16 |
7 |
4 |
7 |
12 |
7 |
=
16 |
7 |
16 |
7 |
看了 脱式计算(能简算的要简算)①...的网友还看了以下:
已知a、b为有理数,m、n分别表示5- 根号7的整数部分和小数部分,且amn+bnˆ2=1,则2a 2020-05-15 …
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89= 0.68+0.42 2020-05-15 …
(1)-2又8分之7-(+2又4分之1)-(-3又2分之1)+(-1又8分之1)(2)2.7+(- 2020-05-16 …
1.1-1又1/2-3/8+7/122.(-5.5)+(-3.2)-(-2.5)-4.83.1-2 2020-05-17 …
1.1-1又1/2-3/8+7/122.(-5.5)+(-3.2)-(-2.5)-4.83.1-2 2020-05-17 …
求方程(x+y)/(x^2-xy+y^2)=3/7的整数解不要用设x+y=3k,x^2-xy+y^ 2020-05-17 …
观察下面的计算过程,5^6×5^-3=5^6×5^3的倒数=5^6÷5^3=5^6-3=5^3=5 2020-05-20 …
问几道初一数学乘方题,“狠”着急,1)-(-1)^6-(1/7)*[7-(-7)^2]2)(-2) 2020-05-20 …
/等于分数线如2/3等于三分之二5/7×3/7+2/7×5/73×4×(1/3+1/4)7/9×1 2020-06-11 …
(-59/7)+(-7.5)+(-151/7)+(7/2)=-0.5-(-13/4)+2.75-( 2020-06-13 …