number
 : Decimals
Approach: Independent
Resources: None
Questions / instructions: % responses
y8

1. 0.75 + 5 =

5.75
49

2. 0.8 + 9 =

9.8
49

3. 5 + 0.3 + 11 + 2.4 + 0.28 =

18.98
30
4. 0.8 - 0.3 =
0.5
66
5. 6 - 0.4 =
5.6
41
6. 64.3 - 9.62 =
54.68
21
7. 5 X 0.5 =
2.5
49
8. 0.6 X 0.7 =
0.42
36
9. 5.3 X 2.2 =
11.66
19
10. 0.82 =
0.4
61
11. 60.5 =
12
16
12. 2.70 2 -
1.35
38
13. 18.2 4 =
4.55
15

Commentary: Only 13 percent of the year 8 students correctly answered at least 10 of the 13 items. A high proportion of the students could not calculate accurately using decimals.



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