+9
10+9
19
12+7
19
10+10
20
10, 20, 30, ___, 50, 60
40
Five hundred seventy eight
578
21+9
30
27+5
32
6+6
12
5, 10, 15, 20, 25, ___, 35, 40
30
100 + 20 + 5
125
75+9
84
66+8
74
7+7
14
14, 16, 18, ___, 22, 24
20
800 + 90 + 9
899
118+9
127
119+9
128
16
36, 46, ___, 66, 76
56
2 hundreds, 3 tens, 4 ones
234
225+9
234
876+9
885
9+9
18
___, 118, 128, 138, 148
108
6 hundreds, 5 tens, 4 ones
654