©MathsWatch
Clip 103
Finding the nth Term
Grade 3 questions
1)
Here are the first five terms of an arithmetic sequence.
1
3
5
7
9
Find, in terms of n, an expression for the nth term of this sequence.
2)
Here are the first five terms of an arithmetic sequence.
6
10
14
18
22
Find, in terms of n, an expression for the nth term of this sequence.
3)
Here are the first five terms of an arithmetic sequence.
1
4
7
10
13
Find, in terms of n, an expression for the nth term of this sequence.
4)
Here are the first five terms of an arithmetic sequence.
7
12
17
22
27
Find, in terms of n, an expression for the nth term of this sequence.
5)
Here are the first five terms of an arithmetic sequence.
8
6
4
2
0
Find, in terms of n, an expression for the nth term of this sequence.
Page 103 A
©MathsWatch
Clip 103
Finding the nth Term
Grade 3 answers
1)
Here are the first five terms of an arithmetic sequence.
1
3
5
7
9
Find, in terms of n, an expression for the nth term of this sequence.
2n − 1
2)
Here are the first five terms of an arithmetic sequence.
6
10
14
18
22
Find, in terms of n, an expression for the nth term of this sequence.
4n + 2
3)
Here are the first five terms of an arithmetic sequence.
1
4
7
10
13
Find, in terms of n, an expression for the nth term of this sequence.
3n − 2
4)
Here are the first five terms of an arithmetic sequence.
7
12
17
22
27
Find, in terms of n, an expression for the nth term of this sequence.
5n + 2
5)
Here are the first five terms of an arithmetic sequence.
8
6
4
2
0
Find, in terms of n, an expression for the nth term of this sequence.
-2n + 10
Page 103 A