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Masteriza [31]
3 years ago
5

How do I know when to multiply divide subtract or add

Mathematics
2 answers:
BabaBlast [244]3 years ago
7 0
Ummm if I understand the question there will be symbols.

Addition is +
Subtraction is -
Multiplication is * or x
Division is /

If you have an expression use PEMDAS like ChrisR described.
Pani-rosa [81]3 years ago
4 0
PEMDAS is very helpful to remember when thinking of order of operations. Parentheses, Exponents, Multiply, Divide, Add, then Subtract. Always in that order. 

If you are talking about something more specific you may want to give a bit more information.
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Lobsters Each year, 183 million pounds of lobster are caught in
oee [108]

Answer:

The quantity of lobster which are sold live each year in the United States and  Canada are 46 million pounds (approximately).

Step-by-step explanation:

Given:

Each year, 183 million pounds of lobster are caught in  the United States and Canada. Twenty-five percent of this amount is  sold live.

Now, to find how  many pounds of lobster are sold live each year in the United States and  Canada.

According to question:

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\frac{25}{100}\times 183

=0.25\times 183

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<em>Each year 45.75 million pounds of lobster are sold live in the United States and Canada.</em>

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