It is when a number or letter is the same term or like term as another number.
For example:
a+b+2b
a is a term and b and 2b are the same term because at the end it has a b.
compatible numbers are numbers that are a like or can compared like fact familys!
The answer depends on what you mean by "like 19". Possible labels: Counting numbers, Integers, Rationals numbers, Real numbers, Prime numbers, Odd numbers, Teens, 2-digit numbers.
kinds of numbers are like 1,2,3,4,5,6,7,8,9,10
A row of numbers, a column of numbers or a rectangular layout of numbers.
Palindrome numbers are numbers that read the same backwards and forwards, like 32923
recurring numbers are numbers that repeat forever like 3.3333333333...etc non-recurring numbers either terminate like 22, or 7.5 OR they go on forever but totally randomly like pi- 3.1415...etc
It's infinite-like numbers themselves.
22 and 333 are composite numbers.
However you like. It's not like they mean anything anyway, so pick some numbers you like and use those.
No, not all negative numbers are rational. There are many negative numbers that are irrational, just like the positive numbers.
adding fractions is like adding a WHOLE lot of parts of numbers
Numbers with a GCF of 1, like 4 and 9.