You realize you're saying that you do not understand the concept behind "I have 7 apples and eat 4, how many are left"?Yes...
...
Do you count them every time you subtract? Or have you memorized the fact that every time you eat 4 apples out of 7 you have 3 remaining.You realize you're saying that you do not understand the concept behind "I have 7 apples and eat 4, how many are left"?