1. 54 x 10 = 540 2 . 82 x 9 =738
40 x 9 = 360
10 x 10 = 100 40 x 9 = 360
10 x 10 = 100 2 x 9 = 18
10 x 10 = 100 360 + 360 + 18 = 738
20 x 10 = 200
4 x 10 = 40
100 + 100 + 100 + 200 + 40 = 540
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