Theproduct 108 x109 can be written as 10000 + ____ x100 + 72.
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108 X 109
= (100+ 8)(100+9)
= 10000 + (8+9) 100 + 8*9
= 10000 + 17 X 100 + 72
= (100+ 8)(100+9)
= 10000 + (8+9) 100 + 8*9
= 10000 + 17 X 100 + 72
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