Răspuns:
a) 15:4=3 rest 3
4x3+3=12+3=15
b)27:4=6 rest 3
4x6+3=24+3=27
c)61:4=15 rest 1
4x15+1=60+1=61
a)534:25=21 rest 9
25x21+9=525+9=534
b) 603:25=24 rest 3
25x24+3=600+3=603
c) 748:25=29 rest 23
25x29+23=725+23=748
a)251:8=31 rest 3
8x31+3=248+3=251
b)345:8=43 rest 1
8x43+1=344+1=345
c)257:8=32 rest 1
8x 32+1=256+1=257