Answer:
True
Step-by-step explanation:
this addition uses the associative property
[tex]a + (b + c) = (a + b) + c[/tex]
[tex]12 + (17 + 1) = (12 + 17) + 1[/tex]
[tex]12 + 18 = 29 + 1[/tex]
[tex]30 = 30[/tex]
[tex] \red { \green {\boxed {\boxed{\star True \star}}}}[/tex]
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