algebra
 : Number Patterns
Approach: Independent
Resources: None

Questions / instructions:
In this activity you are going to complete some number patterns.

Here is an example

2,4,6,8,__,__,
the next two numbers are 10 and 12
the numbers are larger by 2.

Write down the missing numbers in each of these patterns:

  % responses
y4
y8

1. 1, 3, 5, 7,__,__,
9,10
79
95

2. __,__,410, 420, 430, 440.

390,400
41
89

3. 3, 6, 9, 12, __,__,
15,18
75
95

4. __,__,58, 56, 54, 52.

62,60
50
89
5. 7, 7 1/2, 8, 8 1/2,__,__,
9, 9 1/2
62
94
6. 15, 10, 6, 3,__,__,
1, 0
23
55
7. 2, 4, 8, 16,__,__,
32, 64
16
65
8. 9, 9 3/4, 10 1/2, 11 1/4,__,__,
12, 12 3/4
 
29
Commentary:
Year 8 students succeeded well where addition and subtraction were involved, until question 8. Year 4 students also struggled where the item included numbers larger than 20.

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