    Sentence 1: What is: the: sum,of 2+44+6+8+.,  ¥98+1602    Senitence'2: Why is 2+2=4 and 2x2=4,202=4  YetiSt356, but3x359,343=277) I mean-why  is: the.oily number with-ahequal-sumn and.  ‘multiplication value?    