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We have few days how to do math with beshe we can use a lot double parenthesis bracket expression keyboard

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and B c keyboard from these options only b c operate.

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Floating point.

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What is really important to remember from these options is a lot and b c the lead keyboard is used usually

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in the real world script.

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And b c as we said is the option how to operate with floating points let's look on the first option.

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What you can see that we have a variable called number let's say that we want to know the result of

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a value of a variable number plus five Soviet type.

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Last resort equals number plus five.

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Make sure that no space is present around plus sign.

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Do not notice that we didn't the dollar sign before a variable number.

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That's correct when we using it.

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We don't use dollar sign in front of variables using it.

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We can also do easily increment or decrement operation for example that number plus plus is the easiest

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way how to add 1 to the value of variable number.

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As you can see you can also increment by any value using plus equal sign number plus equal sign 5 which

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can be written into a lot number equals number plus five and other option how to do simple math is to

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use double parentheses and you can see here the same example as we had previously.

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Five plus value of a variable number

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and after the array is to use brackets and it's quite similar as we've seen for baroness's is example

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here is a way using expression exper first and second line.

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Do the same thing do remember under Section common substitution first line it uses dollar sign and apparency

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says second line uses Beckford apostrophes.

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Don't forget that when you use expression you need to have spaces around Maat operand.

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In our case plus

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the last option is to use B C here is important to put mathematical expression into double quotes and

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then use pipe followed by B C OK.

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That was a quick summary.

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Let's write some script and do some simple math.