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According to the order of operations, the exercise is solved from left to right as it only involves an addition operation:
13
\( 100+5-100+5 \)
Adding from left to right helps you stay organized and avoid mistakes! It's like reading - you process information in order to make sure you don't miss anything.
Adding zero to any number leaves it unchanged! This is called the zero property of addition. So 13 + 0 = 13, 5 + 0 = 5, and so on.
Yes, especially when learning! Showing each step builds good math habits and helps you catch errors. Even simple problems benefit from clear, organized work.
Double-check your work step by step: , then . If you still get a different answer, ask for help!
Yes! Addition is commutative, so you can rearrange: 12 + 1 + 0 = 1 + 12 + 0 = 0 + 12 + 1. They all equal 13, but left-to-right is the standard method.
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