Find the largest number of 5-digits which is exactly divisible by 57.

Find the smallest 6-digit number which is exactly divisible by 63.

Use distributive law and evaluate :

(i) 576 x 285 + 576 x 115

(ii) 385 x 178 - 385 x 78

(iii) 365 x 645 + 135 x 645

(iv) 407 x 168 - 307 x 168

Using the most convenient grouping, find each of the following products :

(i) 5 x 648 x 20

(ii) 8 x 329 x 25

(iii) 8 x 12 x 25 x 7

(iv) 125 x 40 x 8 x 25