1 + 1 = 2
2 + 2 = 4
0,1 x 100 = 10
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1+1+1+1+1+1+1+1+1+1+1:0=?
2+2+2+2+2+2+2+2+2+2×2÷1=?
(1+2/1)*(1+2/2)*(1+2/3) *(1+2/4)*(1+2/5)*(1+2/6)*(1+2/7)*(1+2/8)*(1+2/9)*(1+2/11)*(1+2/12)*...............*(1+2/26)*(1+2/27) = ?
1+1+1+1+1+1+1+1+1+....+1=?
có 10000 số 1
2+2+2+2+2+2+2+2+2+....+2=?
có 10000 số 2
0+1+2+3+4+5+6+7+8+9+....+10000=?
a,(1/5-1/7):(30%-20%);b,(3-2 và1/2)x(1/2-1/3)
c,1/2x4+1/4x6+...+1/18x20;d,1/1+2+1/1+2+3+...+1/1+2+3+...+2018
h,1/1.6+2/6.11+2/11.16+2/16.21;g,1/1x2x3+1/2x3x4+...+1/18x19x20
A=(1 - 1/1+2) x (1-1/1+2+3) x (1-1/1+2+3) x (1-1/1+2+3)x1-1/1+2+3+4)x ... x (1-1/1+2+3+...+2018)
1/1 x 1/2 + 1/2 x 1/3 + 1/3 + 1/4 + .......... + 1/9 x 1/10
2/1 x 2 + 2/2 x 3 + 2/3 x4 + .............. + 2/98 x 99 + 2/99 x 100
( 1+ 2/1 ) x ( 1+ 2/2 ) x ( 1+ 2/3 ) x ( 1+ 2/4 ) x ... x ( 1+ 2/26 ) x ( 1+ 2/27 )
B=(1+2/1)x(1+2/2)x(1+2/3)x(1+2/4)x....(1+2/2023)x(1+2/2024)
P=1/1+2+1/1+2+3+1/1+2+3+4+1/1+2+3+4+...+1/1+2+3+4+...+2018