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What are the math problems in senior one?
"Number" and "number" are called cardinality and ordinal number.

The number representing quantity is called radix, such as "four", where 4 represents quantity and is called radix.

The number representing the sequence is called ordinal number, such as "fourth", where 4 refers to the sequence and is ordinal number.

If drawn on the number axis, the cardinal number represents a line segment and the ordinal number represents a point on the number axis.

I hope it can help you solve the problem.