Question

What expression shows 3 less than a number?

A. n + 3
B. n - 3
C. 3 - n
D. 3n

Answer 1

Hey there!

Remember, 3 less than a number means we subtract 3 from that number.

It's the same as "a number minus 3"

Now, let's check all 4 options and see which one's right.

The first one is

n+3

Well, that's definitely not the right option, because it says "a number plus 3"

Is it Option B? Yeah!

Because n-3 is the same thing as "a number minus 3"

Is it Option C? Nope!

Because 3-n is the opposite of "a number minus 3"

Is it Option D? no.

Because 3n means "3 times a number"

Hence, the right expression is

`\boxed{\boxed{\bold{n-3}}}`

Hope everything is clear.

Let me know if you have any questions; if so, please comment.

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