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Write an expression for the model. Find the sum.


A. 2 + 3; 5
B. 2 + (–3); 1
C. 2 + (–3); –1
D. –3 + 2; 5

Write an expression for the model Find the sum A 2 3 5 B 2 3 1 C 2 3 1 D 3 2 5 class=

Respuesta :

C)2+(-3);-1
If you look at the model you see it meets at zero both ways go to -1 and 2 but when you travel to -1 its -3 because you move backwards on the model

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