20000 - 1009 =
(366+434) x 1009/500 +1009/500 x 199 + 1009/500
\(\left(366+434\right)\times\frac{1009}{500}+\frac{1009}{500}\times199+\frac{1009}{500}\)
\(=800\times\frac{1009}{500}+\frac{1009}{500}\times199+\frac{1009}{500}\)
\(=\left(800+199+1\right)\times\frac{1009}{500}\)
\(=1000\times\frac{1009}{500}\)
\(=2018\)
~ Thiên Mã ~
\(\left(366+434\right)\times\frac{1009}{500}+\frac{1009}{500}\times199+\frac{1009}{500}\)
\(=800\times\frac{1009}{500}+\frac{1009}{500}\times199+\frac{1009}{500}\times1\)
\(=\left(800+199+1\right)\times\frac{1009}{500}\)
\(=1000\times\frac{1009}{500}\)
\(=\frac{1009000}{500}=2018\)
20000+20000-20000+20000-20000,,,,,,-9000
cach giai la gi
?
hahaha
ko có cách giải
vì 20000,,,,-9000 ko có nghĩa
Tính nhẩm:
a) 50000 + 20000 + 10000 = ............
80000 - (30000 + 20000) = ............
b) 80000 - 30000 - 20000 = ............
50000 + (20000 + 10000) = ............
a) 50000 + 20000 + 10000 = 80000
80000 - (30000 + 20000) = 30000
b) 80000 - 30000 - 20000 = 30000
50000 + (20000 + 10000) = 80000
Tính giá trị biểu thức sau: A= (1/7+ 1/23 - 1/1009):( 1/23+1/7 -1/1009 + 1/7 x 1/23 x 1/1009 )+ 1 : ( 30 x 1009 - 160 )
G = ( 1/7 + 1/23 - 1/1009 ) : ( 1/23 + 1/7 - 1/1009 + 1/7. 1/23 . 1/1009 ) + 1: ( 30. 1009 - 160)
tính G đố ai làm duoc đó
Tính nhẩm:
a) 30000 + (20000 + 40000) = ..................
30000 + 20000 + 40000 = ..................
60000 - (30000 + 20000) = ..................
60000 - 30000 - 20000 = ..................
b) 40000 x 2 : 4 = ..................
36000 : 6 x 3 = ..................
20000 x 4 : 8 = ..................
60000 : 3 x 2 = ..................
a) 30000 + (20000 + 40000) = 90000
30000 + 20000 + 40000 = 90000
60000 - (30000 + 20000) = 10000
60000 - 30000 - 20000 = 10000
b) 40000 x 2 : 4 = 20000
36000 : 6 x 3 = 18000
20000 x 4 : 8 = 10000
60000 : 3 x 2 = 18000
A = ( 1/7 + 1/23 - 1/1009 ) : (1/23 + 1/7 - 1/1009 + 1/7 . 1/23 . 1/1009 ) + 1 : ( 30 . 1009 - 160 )
Làm lẹ lẹ lên nha đồng chí rồi sẽ có thưởng
B=(1/7+1/23-1/1009):(1/7+1/23-1/1009+1/7x1/23x1/1009)+1:(30x1009-160)
tính : A=(1/7+1/23-1/1009):(1/23+1/7-1/1009+1/7x1/23x1/1009)+1:(30x1009-160)
suy ra A=1/23+1/7-1/1009.23.7.1009 phần 1/23+1/7-1/1009+1/7.1/3/1/1009 .23.7.1009+1/30.1009-160
suy ra A=7.1009+23.1009-23.7/7.1009+23.1009-23.7+1 +1/7.1009+23.1009-23.7+1=7/1009+23.1009- 23.7+1/7.1009+23.1009-23.7+1=1