Question

va rog ajutatima dau coroan ex 8 si 9

Answer 1

8)
+ 12 15 24 31
42 54 57 66 73
14 26 29 38 45
60 72 75 84 91
33 45 47 57 64

9)
a 68 15 76 23 26
b 1 4 2 3 3
a+b 69 19 78 26 29
a-b 67 11 74 20 23 .

Sper că te-am ajutat !

Answer 2

12+33=45
15+42=57
15+14=29
15+60=75
15+33=48

24+42=66
24+14=38
24+60=84
24+33=57

31+42=73
31+14=45
31+60=91
31+33=64



68-34=34
68-5=63
99-12=87
99-51=48

75-34=41
75-5=70
75-12=63
75-51=24

56-34=22
56-5=51
56-12=44
56-51=24


a+b=69
a-b=67

a=15
a+b=15+4=19
a-b=15-4=11

b=2
a+b=76+2=78
a-b=76-2=74

a=23
a+b=23+3=26
a-b=23-3=20