Odpowiedź:
a) 60 + 50% = 90
90 - 50% = 45%
5 - 20% = 4
4 + 20 % = 4,8
320 + 10 % = 352
352 - 10 % = 316,8
b) 20 + 20% = 24
24 + 50 % =36
20 + 70 % = 34
50 + 20 % = 60
60 + 50 % = 90
90 - 70% = 27
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Odpowiedź:
a) 60 + 50% = 90
90 - 50% = 45%
5 - 20% = 4
4 + 20 % = 4,8
320 + 10 % = 352
352 - 10 % = 316,8
b) 20 + 20% = 24
24 + 50 % =36
20 + 70 % = 34
50 + 20 % = 60
60 + 50 % = 90
90 - 70% = 27