Odpowiedź:
Zad. 1
1. 15% ze 100: 15/100 * 100 = 15
2. 13% z 200 = 26
3. 5% z 250 = 12,5
4. 30% z 90 = 27
5. 40% z 80 = 32
6. 1% z 1000 = 10
7. 42% z 150 = 63
8. 55% z 60 = 33
9. 3% z 300 = 9
10. 25% z 4 = 1
11. 20% z 12 = 2,4
12. 75% z 76 = 57
13. 99% z 400 = 396
14. 65% z 60 = 39
15. 23% z 800 = 184
Zad. 2
1. Libcza 2 z 4: 2/4 = 50/100 = 50%
2. 26 z 200 = 26/200 = 13%
3. 12,5/250 = 5%
4. 27/90 = 30%
5. 32/80 = 40%
6. 10/1000 = 1%
7. 63/150 = 42%
8. 33/60 = 55%
9. 9/300 = 3%
10. 1/4 = 25%
11. 2,4/12 = 20%
12. 57/76 = 75%
13. 396/400 = 99%
14. 39/60 = 65%
15. 184/800 = 23%
Zad. 3
1. 30% jako liczba: 30% = 30/100 = 15/50 = 3/10
2. 10% = 10/100 = 1/10
3. 15% = 15/100 = 3/20
4. 40% = 40/100 = 20/50 = 2/5
5. 55% = 55/100 = 11/20
6. 66% = 66/100 = 33/50
7. 120% = 120/100 = 12/10 = 6/5 = 1 i 1/5
8. 11% = 11/100
9. 14% = 14/100 = 7/50
10. 90% = 90/100 = 9/10
11. 52% = 52/100 = 13/25
12. 38% = 38/100 = 19/50
13. 75% = 75/100 = 3/4
14. 88% = 88/100 = 22/25
15. 1000% = 1000/100 = 10
