Let's call the number x.
When x is multiplied by 10, it is 50 less than 650. We can write this as:
10x+50 = 650
Now that we have an equation, let's solve it.
Firstly, subtract 50 from both sides
10x = 600
Then, divide both sides by 10
x = 60
The number 60 is 50 less than 650 when it is multiplied by 10.
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