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Explain how you know to use a variable in an addition or subtraction expression?
that we can use it
Why can you use addition to check your subtraction?
Addition is the opposite of subtraction. For example, 24 - 9 = 15. If you want to check your answer, add 9 + 15. It equals 24, so your answer is correct.
Do you add before you subtract?
In mathematics, the order of operations dictates that you perform addition and subtraction in the order they appear from left to right in an expression. This means that you should perform addition before subtraction only if addition comes before subtraction in the expression. If addition and subtraction are next to each other, you would perform them from left to right.
How will you use addition and subtraction in real life?
when u r adding prices it helps alot i am also in school learning addition and subtraction so i know how u feel but if u like to shop then it's very helpful
What is the pattern for 3 8 23 68?
608 (Use subtraction and multiplication)
