`526xx12+188=50xx?`

12^16xx12^-4 =

State True or False: 525xx(12-3)=(525xx12)-(525xx3)

(i) 246xx1= ......... (ii) 1369xx0=......... (iii) 593xx188=188xx...... (iv) 286xx753= ...... xx286 (v) 38xx(91xx37)=...... xx (38xx37) (vi) 13xx100xx ......... = 1300000 (vii) 59xx66+59xx34=59xx(....... + .......) (viii) 68xx95 =68xx100-68xx ..........

If, 6xx4=12 4xx12=24 12xx6=36 then 6xx9=?

19 xx 12 + 19 = 19 xx (12 + _____)

Evaluate: (1.2 xx 1.2 + 1.2 xx 0.3 + 0.3 xx 0.3)/(1.2 xx 1.2 xx 1.2- 0.3 xx 0.3 xx 0.3)

The product by suitable arrangement of 20xx 255 xx50 xx 7 is -

Number of zero's in the product of 5xx10xx25xx40xx50xx55xx65xx125xx80 is