Các câu hỏi tương tự
11 tháng 1 2024 lúc 15:17
5/-6 + -5/12 + 7/18 =...........
2/9 + -3/10 + -7/10 =....................
-11/6 + 2/5 + -1/6 =.............
-5/8 + 12/7 + 13/8 + 2/7 =..................
tính:
a) 25% : 1/2 + 7/6 . 12/6
b) 7/2 + ( 3/4 . 12/7 ) - 1/2
B=7/6+7/12+7/20+...+7/1980
Tim B=81.((12-12/7-12/289-12/85)/(4-4/7-4/289-4/85))/((5+5/13+5/169+5/91)/(6+6/13+6/169+6/91)).158158158/711711711
Tim B=81.((12-12/7-12/289-12/85)/(4-4/7-4/289-4/85))/((5+5/13+5/169+5/91)/(6+6/13+6/169+6/91)).158158158/711711711
Thực hiện các phép tính sau
a) 7/10+6/10
b) -5/9+2/9
c)1/7+1 6/7
d) 3/13+10/3+1
e) 5/12-7/12
f) 7/6+5/6-1/6
g) -3/20+7/20-9/20
1.tính A.-5/8-7/-12 B.3/4+(-5)/6-11/-12 C.1/6-1/36 D.15/48-(-5)/12 E.-1/7-1/8 F.-5/15-(-3)/25 G.3/4-(-5)/12-7/-24
Tính giá trị biểu thức:a)
(
−
9
)
.
(
−
5
)
+
(
−
7
)
.
12.
b)
(
−
4
)
.
12
+
(
−
3
)
.
(
−
8
)
c)
(
−
12...
Đọc tiếp
Tính giá trị biểu thức:
a) ( − 9 ) . ( − 5 ) + ( − 7 ) . 12.
b) ( − 4 ) . 12 + ( − 3 ) . ( − 8 )
c) ( − 12 ) . 7 − 6 . ( − 5 ) .
d) ( − 6 ) . 9 − ( − 9 ) . 8.
\(12^7:6^7\)
tinh B
B=81.[12-12/7-12/289-12/85/4-4/7-4/289-4/85:5+5/13=5/169+5/91/6+6/13+6/169+6/91].158158158/711711711