243, 81, 27, (), (), what are the rules No three and nine! no The wrong number is 243. There are no 3 and 9 ahead

243, 81, 27, (), (), what are the rules No three and nine! no The wrong number is 243. There are no 3 and 9 ahead

The fifth power of 3, the fourth power of 3, the third power of 3, the second power of 3 and the first power of 3
243、81、27, 9, 3

The greatest common factor of 9 and 16 is () a.1 B.3 c.8 d.9
The greatest common factor of 9 and 16 is ()
A.1 B.3 C.8 D.9

A

What are the minimum common factor and maximum common factor of 9 and 10

It's all 1

First row: 1 second row: - 2 3-4 third row: 5-6 7-8 9
The fourth line: - 10 11-12 13-14 15-16
If you go on like this, line 10 is from the left. What's the ninth number?

Look at the absolute value of the last number on each line,
The first line: 1 = 1 & # 178;
The second line: 4 = 2 & # 178;
The third line: 9 = 3 & # 178;
So the ninth line: 81 = 9 & # 178;
The first number in the tenth line is 81 + 1, so the ninth number is 81 + 9 = 90
Look at the sign again, odd is positive, even is negative
So the number is - 90