a)
450 * 10% = 45
270 * 10% = 27
320 * 10% = 32
5200 * 10% = 520
4000 * 10% = 400
18 * 10% = 1,8
75 * 10% = 7,5
9 * 10% = 0,9
450 * 1% = 4,5
270 * 1% = 2,7
320 * 1% = 3,2
5200 * 1% = 52
4000 * 1% = 40
18 * 1% = 0,18
75 * 1% = 0,75
9 * 1% = 0,09
b)
60% liczby 450 to 6 * 45 = 270
20% liczby 270 to 2 * 27 = 54
40% liczby 320 to 4 * 32 = 128
30% liczby 4000 to 3 * 400 = 1200
60% liczby 5200 to 6 * 520 = 3120
4% liczby 450 to 4 * 4,5 = 18
3% liczby 5200 to 3 * 52 = 156
12% liczby 4000 to 12 * 40 = 480
2% liczby 18 to 2 * 0,18 = 0,36
4% liczby 320 to 4 * 3,2 = 12,8
