Answer:
adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Step-by-step explanation:
please mark brainleist
it going to be number three
Answer:
its b
Step-by-step explanation:
because each pair is inversed
Answer:
Step-by-step explanation:
Of course A does because integers are positive and negative
