a). 986:2 =493.
18
18
==6
6
=
1024 :2 =512
10
==2
2
=4
4
=
24648 :2 =12324
2
=4
4
=6
6
=4
4
=
1442:2=721
14
==4
4
=2
2
=
b). 840:4=210
8
=4
4
=0
0
=
440:4=110
4
=4
4
=0
0
1240:4=310
12
==4
4
=0
0
=
20840:4=5210
20
==8
8
=4
4
=0
0
=
c). 495:3=195
3
19
18
=15
15
==
363:3=121
3
=6
6
=3
3
=
1470:3=490
12
=27
27
==0
0
=
15963:3=5321
15
==9
9
=6
6
=3
3
=