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8 6 13
5 5 x
3 4 3 En vertical
8(3)+5=29
6(4)+5=29
13(3)+x=29
x=29 -39= -10
PREGUNTA 2)
4 10 25
9 12 16
25 x 9. En horizontal
(√4)(√25)=10
(√9)(√16)=12
(√25)(√9)=x →x =15
PREGUNTA 3)
9 10 361
4 8 144
5 12 x En horizontal
(9+10)² =361
(4+8)² =144
(5+12)² =x →x=(17)²= 289
PREGUNTA 4)
55 44 8
42 21 5
25 x 6 En horizontal
(55+44)-3=12(8)
(42+21)-3=12(5)
(25+x)-3 =12(6) →x=72-25+3=50
PREGUNTA 5)
4 6 7
5 x 3
10 5 2 En horizontal
4+6+7=17
10+5+2=17
5+x+3=17 →x=17-5-3=9
PREGUNTA 6)
15 5 2
6 18 20
5 3 x En vertical
15+6+5=26
5+18+3=26
2+20+x=26 →x=26-2-20=4