8% liczby 900=.........* _____________ =...........
(1% liczby 900)
3% liczby 200=......... * _____________ =.............
(1% liczby 200)
40% liczby 70=.........* _____________=.............
(10% liczby 70)
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8% liczby 900= 8 * 9 = 72
3% liczby 200= 3 * 2 = 6
40% liczby 70 = 4 * 7 = 28
72*9=648
6*2=12
28*7=196
licze na naj :)