12×12=9 ? 23×23=16 ? 34×34=? Как решить
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12 × 12 =144 ; 1 + 4 + 4 = 9
then 12 × 12 = 9
23 × 23 =529 ; 5+ 2+ 9= 16
then 23 × 23 = 16
34 × 34 = 1156 ; 1 + 1 + 5 + 6 =13
then 34 × 34 = 13
Hence the digits in products of the numbers are added to each other
then 12 × 12 = 9
23 × 23 =529 ; 5+ 2+ 9= 16
then 23 × 23 = 16
34 × 34 = 1156 ; 1 + 1 + 5 + 6 =13
then 34 × 34 = 13
Hence the digits in products of the numbers are added to each other
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