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You should know the following important sequences.

 

Counting numbers

1, 2, 3, 4, 5, 6, 7, 8.......

 

Multiples of 2

2, 4, 6, 8, 10, 12, 14, 16......

 

Powers of 2

2, 4, 8, 16, 32, 64, 128, 256......

 

Powers of 10

10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000......

 

Fibonacci

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89......

 

Square numbers

1, 4, 9, 16, 25, 36, 49, 64......

 

Cube numbers

1, 8, 27, 64, 125, 216, 343, 512......

 

Triangle numbers

1, 3, 6, 10, 15, 21, 28, 36, 45......

10 questions