wylicz proocent z danej liczby;
a) 2 1\2% *36=
b) 33 1\3% *93,6
c) 4% * 36,5
d) 36% *152,8
e) 200% * 405
f) 7,5% * 31,6
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a) 2 1\2% *36=2,5% * 36 = 0,025 * 36 = 0,9
b) 33 1\3% *93,6 = 100/3% *93,6 = 100/3*1/100 * 93,6 = 1/3*93,6 = 31,2
c) 4% * 36,5 = 0,04*36,5 = 1,46
d) 36% *152,8 = 0,36 * 152,8 = 55,008
e) 200% * 405 = 2 * 405 = 810
f) 7,5% * 31,6 = 0,075*31,6 = 2,37