The statement best matching “the four number line diagrams & their corresponding subtraction statement” is fine. But the explanations offered when (i) selecting the best-matching-statement and (ii) selecting a statement that is not best-matching….. those explanations all begin with “Here, every time we start one higher, we count back one more. As as a result, we always end in the same position.“
But that beginning sentence does not apply to this case. This case involves counting up from the smaller number in order to reach the larger number.
