Bài Làm:
1.
2.
3.
a) 4; 5; 6 d) 9; 10; 11 |
b) 86; 87; 88 e) 99; 100; 101 |
c) 896; 897; 898 g) 9998; 9999; 10 000 |
4.
a) 909; 910; 911; 912; 913; 914; 915; 916
b) 0; 2; 4; 6; 8; 10; 12; 14; 16; 18; 20
c) 1; 3; 5; 7; 9; 11; 13; 15; 17; 19; 21
5.