Doubles
5+5
10
5+5+1
11
8+5
10+3
6+6
12
6+6+1
13
9+2
10+1
7+7
14
7+7+1
15
7+9
10+6
8+8
16
8+8+1
17
Antonio had 8 brownies. He made 6 more brownies. What is another way to show this adding problem as a 10 and some ones?
10+4
9+9
18
9+9+1
19
Jessica won 3 trophies. Next year, she won 9 more trophies. What is another way to write this adding problem as a 10 and some ones and how many trophies does Jessica have in all?
10+2=12