Divide : `(i) 85 " by " -17 (ii) -72 " by " 18 (iii) -80 " by " 16 `
`(iv) -121 " by " 11 (v) 108 " by " -12 (vi) -161 " by " 23`
(vii) `-76 " by " -19 (viii) -147 " by " -21 (ix) -639 " by " -71`
`(x) -15625 " by " -125 (x i) 2067 " by " -1 (x ii) 1765 " by " -1765`
(x iii) ` 0 " by " -278 (x iv) 3000 " by " -100`

Answer

`(i) -5 (ii) -4 (iii) -5 (iv) -11`
`(v) -9 (vi) -7 (vii) 4 (viii) 7 `
`(ix) 9 (x) 125 (x i) -2067 (x ii) -1`
`(x iii) 0 (x iv) -30 `