139x9,358x8,729x2,298x5,498x6,396x7,629x6

how do you do multiplying with an algorithm ? Show me how do to   estimate each product. 139x9,358x8,729x2,298x5,498x6, and i should have 3 estimates that are 1500 or less  calculate their products.  Then estimates and then calculate. 396x7, 629x5.
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??????????????????? wot du yu meen bi all that gibberish ?????????????

???????????? "139x9" ???????????

????? maebe that shood be 139*9 ???????????
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