The acronym BEDMAS can be use to remember the order of operation when solving a math expression. BEDMAS stands for brackets, exponents, division, multiplication, addition and subtraction.
This mean that in attempt to solve a math expression with different operations, you should start by what is in bracket, then the exponents, then division/multiplication and finally addition/subtraction. Notice that division and multiplication have the same priority and you should resolve the equation from left to right when dealing with a series of division and multiplication. The same as addition and subtraction. For instance:
2 x 4 ÷ 8 = ?
From left to right so 2 x 4 = 8
Then 8 ÷ 8 = 1
You should not start by 4÷8 and then multiply 2.
Likewise 2+3–6+2 = 5–6+2 = -1+2 = 1
For the problem 2 + 2 + 2 + 2 × 2 ÷ 2
The part that is in bold “2 x 2 ÷ 2” takes precedence over the additions. As previously mentioned, multiplication and division have the same priority and the equation is therefore resolve by going from left to right. (Same for addition and subtraction). And so we obtain:
2 × 2 ÷ 2 = 4 ÷ 2 = 2
(For this particular problem, we could have started with division, which is the incorrect but still end up with 2 as an answer. This is not always the case and is fair to say, highly unlikely in a test situation where your ability to apply “order of operation” is being evaluated). The part in bold is equal to 2, now the entire expression can solved and in this case it simply a series of additions:
2 + 2 + 2 + 2 = 2 x 4 = 8
I wrote 2 + 2 + 2 + 2 as 2 x 4 because 2 + 2 + 2 + 2 is the addition of 2 four times, so 2 x 4 which is 8.
Other acronyms for BEDMAS are PEMDAS (P: parenthesis); BODMAS (O: Orders); BIDMAS (I: indices).
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Answer:
The acronym BEDMAS can be use to remember the order of operation when solving a math expression. BEDMAS stands for brackets, exponents, division, multiplication, addition and subtraction.
This mean that in attempt to solve a math expression with different operations, you should start by what is in bracket, then the exponents, then division/multiplication and finally addition/subtraction. Notice that division and multiplication have the same priority and you should resolve the equation from left to right when dealing with a series of division and multiplication. The same as addition and subtraction. For instance:
2 x 4 ÷ 8 = ?
From left to right so 2 x 4 = 8
Then 8 ÷ 8 = 1
You should not start by 4÷8 and then multiply 2.
Likewise 2+3–6+2 = 5–6+2 = -1+2 = 1
For the problem 2 + 2 + 2 + 2 × 2 ÷ 2
The part that is in bold “2 x 2 ÷ 2” takes precedence over the additions. As previously mentioned, multiplication and division have the same priority and the equation is therefore resolve by going from left to right. (Same for addition and subtraction). And so we obtain:
2 × 2 ÷ 2 = 4 ÷ 2 = 2
(For this particular problem, we could have started with division, which is the incorrect but still end up with 2 as an answer. This is not always the case and is fair to say, highly unlikely in a test situation where your ability to apply “order of operation” is being evaluated). The part in bold is equal to 2, now the entire expression can solved and in this case it simply a series of additions:
2 + 2 + 2 + 2 = 2 x 4 = 8
I wrote 2 + 2 + 2 + 2 as 2 x 4 because 2 + 2 + 2 + 2 is the addition of 2 four times, so 2 x 4 which is 8.
Other acronyms for BEDMAS are PEMDAS (P: parenthesis); BODMAS (O: Orders); BIDMAS (I: indices).
Step-by-step explanation: