Operations on whole numbers

1 + 9 = 

• 10
• 11
• 13
• 8

14 + 7 =

6 + 7 =

• 12

• 13

• 14

• 15

6 + 11 =

5+9=

• 14
• 4
• 10
• 11

8 + 9 =

• 16

• 17

• 18

• 15

10 + 2

• 10

• 11

• 12

• 13

 $6+7=?$  

6 + 9 =

• 13

• 15

• 10

• 16

What addition fact does this show? 

• 1 + 2 + 3 = 9
• 5 + 4 = 9
• 3 + 3 + 3 = 9