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give two examples that show how using parentheses can change the order in wich operations are performed in an expression
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Oct 6, 2018
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give two examples that show how using parentheses can change the order in wich operations are performed in an expression
Mathematics
middle-school
Guang
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(4 + 2) / 36 = 1/6
4 + 2/36 = 4 + 1/18 = 72/18 + 1/18 = 73/18
(5 - 3) / 4 = 1/4
5 - 3/4 = 20/4 - 3/4 = 17/4
Bpelhos
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Oct 7, 2018
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This is because of the order of operations:
Parentheses
Exponent
Divide
Multiply
Add
Subtract
Note that parentheses are the first, so it will affect everything after it.
Examples:
2(5+4)= 2x9= 18
(2x5)+4= 10+4= 14
5/(2+3)= 5/5= 1
(5/2)+3= 2.5+3= 5.5
Qknight
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Oct 10, 2018
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