Find the sum by suitable rearrangement: (a) `2xx1768xx50` (b) `4xx166xx25` (c) `8xx291xx125` (d) `625xx279xx16` (e) `285xx5xx60` (f) `125xx40xx8xx25`

Explanation

(a) `2*1768*50`

`= (2*50)*1768 = 176800`

(b) `4*166*25`

`= (4*25)*166`

`= 100*166 = 16600`

(c) `8*291*125`

`= (8*125)*291`

`= 1000*291 = 291000`

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