\(\frac{1\times2\times3\times4}{5\times6\times7\times8}\times X=1\)\(1\)
\(\frac{1}{70}\) \(\times X\)\(=1\)
\(X\) \(=1:\frac{1}{70}\)
\(X\) \(=70\)
Tính giá trị của X
(X : 10) + 37 = 60
25 x X – 15 x X = 72
138 – ( X x5) = 38
(X x 9) : 52 = 18
52 x X + 48 x X = 100
623 x X – 123 x X = 1000
X x 16 + 84 x X = 700
236 x X – X x 36 = 2000
216 : X + 34 : X = 10
2125 : X – 125 : X = 100
a) X x 6 x 7.......7 x X x 6
b) X x 5 x 8....X x 5 x 7
c) 2 x X x 3......X x 3
9 x 9 x 9 x 9 x 9 x 9 x 99 x 9 x 9 x 9 x 99 x 9 x 9 x 9 x 9 x 9 : 2 x 3 : 4 x 9 x 9 x 9 x 9 x 9 x 9
Tính giá trị của X
(X : 10) + 37 = 60
25 x X – 15 x X = 72
138 – ( X x5) = 38
(X x 9) : 52 = 18
52 x X + 48 x X = 100
623 x X – 123 x X = 1000
X x 16 + 84 x X = 700
236 x X – X x 36 = 2000
216 : X + 34 : X = 10
2125 : X – 125 : X = 100
1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 2 x3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x 15 =
Bai3: Tính
b. 4 x 6 x 10 x 12 x 15/ 4 x 12 x 5 x 24 x 30 =
c. 34 x 101 x 2005/ 17 x 202 x 4010=
d.6 x 8 x 11 x 13 x 17/ 33 x 16 x 17 x 26 =
tìm X
75 x X = 1800
1855 : X = 35
X + X x 2 + 6 x X = 81
155 x X - X x 146 = 72
7 x 1 x 7 =
7 x 2 x 7 =
7 x 3 x 7 =
7 x 4 x 7 =
7 x 5 x 7 =
7 x 6 x 7 =
7 x 7 x 7 =
7 x 8 x 7 =
7 x 9 x 7 =
7 x 10 x 7 =
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ngu kéo xuống làm đéo gì
Tìm x
a) X x 15 + X x 13 = 560 x 45
( X + X x 2 ) : 34 = 504
360 : X - 126 = X = 6
58 x X - 934 = 6722
14968 - X x 5 = 4968
b) X x 125 - X x 73 = 1196
246 : X = 34 : X = 5
2005 + X x 34 = 5337
X : 1234 = 127 ( dư 360 )
Tích sau có tận cùng bằng bao nhiêu số 0.
a, 5 x 6 x 7 x..........x 60 x 61.
b, 12 x 13 x14 x......x 80 x 81.
c, 1 x 2 x 3 x......x 70 x 71.
d, 3 x 4 x 5 x.........x 100 x 101.
Giúp mình với!
