1.

20 รท 2-10ร—2+5014 รท 5 + 20

Answer» <p>20/2 - 10 * 2 + 5 of 4 / 5 + 2020 *1/2 -10 * 2 + 5 * 4 *1/5 +2010 - 20 +20/5 + 2010 - 20 + 4 + 20-10 + 24 = 14</p> <p>decrease 140 by 18÷100</p>


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