Sequences IGCSE

Find the next eight term of the sequences:

13,16,19,22,25,…,…

Find the next term of the sequence 160,80,40,20,10,…

• 0

• 5

• -10

• -5

Write an expression for the nth term rule of 7,9,11,13,15,…,

• 2n+5

• 7n+5

• 7n+2

• 2n+7

Write down the nth term rule of 5,−1,−7,−13,−19,…,

• 6n-6

• 6n+11

• -6n+11

• -6n-6

Write down the term in the sequence 2,6,10,14,18,…, that equals 322

The tenth term of an arithmetic sequence is 68 and the 11th term is 75. What is the first term for this sequence

• 6n

• 5n+1

• 5n+5

• 5n+6

• 3n-2

• 3n+1

• 3n+3

• 3n+2

Work out the number of dots in pattern number 12

Find the sum of all the even numbers between 2 and 160 inclusive.