Addition up to 20
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Addition up to 20 Answer Key
Instructions: Fill in each blank with the number that makes each picture or number sentence true.
1.





2.
[math]14 +[/math]


[math]=[/math] 18




3.






4.
[math]20[/math] [math]=[/math] 13 [math]+[/math] 












5.
[math]7[/math] [math]=[/math] 
[math]+[/math]5


6.
12 [math]=[/math] 






[math]+ 4[/math]








7.
16 [math]= 9 +[/math] 












8.
12 [math]+[/math]
[math]= 13[/math]

9.
3 [math]+ 8 =[/math] 




















10.
[math]10 +[/math]







[math]=[/math] 19









11.
[math]2 + 5 =[/math]7
12.
[math]1 +[/math] 9 [math]= 10[/math]
13.
[math]4 + 8 = [/math]12
14.
3[math]+ 6 = 9[/math]
15.
[math]7 + 7 =[/math] 14
16.
[math]7 +[/math] 8 [math]=15[/math]
17.
9 [math]+ 9[/math] [math]= 18[/math]
18.
[math]0 + 8 =[/math] 8
19.
[math]6 +[/math] 5 [math]= 11[/math]
20.
9 [math]+ 8[/math][math]= 17[/math]
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