Q11. Simplify by using suitable properties (also state them ):
(a) 71 x 56 + 29 x 56
(b) 135 x 52 + 135 x 48
(c) 16825 x 16825 – 16825 x 6285
(d) 569 x 17 + 569 x 13 + 569 x 70
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Answer:
56× (79+29)= 56× 108 = 6048 .
13500 .179202145
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