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When do you use BIDMAS in real life?
When working out mathematical problems because BIDMAS is the order of arithmetical operations in step by step stages i.e. brackets, indices, division, multiplication, addition followed by subtraction.
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 do you use subtraction in the real world?
you always use math in your life weather you are adding , subtracting , multipling or dividing you are always using math ! there is not a day that goes by that people dont use math !
