Răspuns:
Explicație pas cu pas:
15:4=3 rest 3. 27:4=6 rest 3. 61:4=15 rest 1. 75:4=18 rest 3
3x4+3 =15. 6x4+3=27. 15x4+1 =61. 18x4+3=75
534:25=21 rest 9. 603:25=24 rest 3. 748:25=29 rest 23. 604:25=20 rest 14
21x25+9=534. 24x25+3=603. 29x25+23=748. 20x25+14=604
251:8=31 rest 3. 345:8=43 rest 1. 257:8=32 rest 1. 403:8=50 rest 3
31x8+3=251. 43x8+1=345. 32x8+1=257. 50x8+3=403
