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Do number lines start at the number zero?
They don't really have a start; they extend indefinitely in both directions.
What is the maximum number of crossovers with five lines?
It is 10 crossovers.
Do Number lines end with the number ten?
A numberline is never-ending. It goes to infinity to the right and to negative infinity to the left... Not always it depends on what nimber line it is.
How do you put real life events on number lines?
Think of the numbers on the number line as years, months, or dates of the month. You could explain the event in a text box close to the corresponding date, then draw an arrow from the box to the location of the date on the number line.
What is a diagram used to identify the prime factors of a number?
A factor tree is very useful when identifying the prime factors of a number. You draw two lines off of it and write two numbers that multiply together to make that number. If one of the numbers cannot be divided any further, then circle it. That is a prime number. Draw two lines off of numbers that can be divided further, so you have multiple branches dividing off into certain numbers. Once all the numbers have been divided down, you are left with prime numbers which you can then multiply to get back to the original number.
