Steply

The difference of a number and 2

Step by step, with the reason for every step · Words to expressions · Algebra 1

Step by step

The question

Question: write with math signs: the difference of a number and 2.

the difference of a number and 2

1 Change words to math

2 Put it in order

The first one comes first.

So we get n − 2.

= n − 2

3 Check

Let's check with a number.

Say the number is 10.

The difference of 10 and 2 is 8.

the difference of 10 and 2 is 8

And 10 − 2 is 8 too.

So n − 2 is right!

10 − 2 = 8

Let's look back.

First: change words to math.

Then: put it in order.

Last: check.

Answer
= n − 2

Your turn

Try this one yourself, then check:

the difference of a number and 5
Show the answer
n − 5

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