Lecture
And in the calculations of examples you need to follow a certain procedure. Using the rules below, we will figure out in which order actions are performed and why brackets are needed.
If there are no brackets in the expression, then:
Consider the procedure in the following example.
We remind you that the order of actions in mathematics is placed from left to right (from the beginning to the end of the example).
When calculating the value of an expression, you can record in two ways.
When calculating the results of actions with two-digit and / or three-digit numbers, be sure to bring your calculations in a column.
If the expression contains brackets, then first perform the actions in brackets.
Inside the brackets themselves, there is a rule of procedure as in expressions without brackets.
If there are another brackets inside the brackets, then the actions inside nested (internal) brackets are performed first.
If the example contains a numeric or alphabetic expression in brackets that must be raised to a power, then:
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Arithmetic
Terms: Arithmetic