Solve the Basic Arithmetic Problem: 19+1-0

Good observation! In this simple case, the answer might be the same, but following the correct order builds good habits for harder problems where order really matters, like $10 - 5 + 3$.

Subtracting zero from any number leaves the number unchanged! So $20 - 0 = 20$. Zero is the additive identity - it doesn't change values in addition or subtraction.

Yes! Even though there are no parentheses or multiplication, addition and subtraction have equal priority and must be solved left to right. This is a fundamental PEMDAS rule.

Write out each step clearly even for simple problems. Show $19 + 1 = 20$, then $20 - 0 = 20$. This prevents careless errors and reinforces good mathematical habits.

Double-check your arithmetic! The most common errors are misreading numbers or skipping the subtraction step. Remember: 19 + 1 gives you 20, then subtract 0 to keep 20.