Addition (Y8)
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Approach:  Independent
ACCESS
Level: Year 8
Focus: Adding without a calculator  
Resources:
Answer booklet
94kb
Questions/instructions:  

Work out the answers to the addition questions. Show how you work out your answers.

   
 
% responses
2009 ('05)
y4
y8
1. 4 + 2 + 9 + 5 + 3 = [ 23 ] correct   90 (85)
incorrect with clear computational error   4 (5)
incorrect/any other response   6 (10)
Working used: horizontal algorithm   49 (44)
  vertical algorithm   5 (13)
2. 21 + 54 = [ 75 ] correct   95 (95)
incorrect with clear computational error   2 (1)
incorrect/any other response   3 (4)
Working used: horizontal algorithm   37 (23)
  vertical algorithm   18 (32)
3. 76 + 48 = [ 124 ] correct   82 (80)
incorrect with clear computational error     5 (5)
incorrect/any other response     13 (15)
Working used: horizontal algorithm    36 (22)
  vertical algorithm     21 (35)
4. 389 + 217 = [ 606 ] correct   77 (78)
incorrect with clear computational error   7 (5)
incorrect/any other response   16 (17)
Working used: horizontal algorithm   35 (20)
  vertical algorithm   26 (40)
5. 49 + 103 + 51 + 97 + 260 = [ 560 ] correct   60 (62)
incorrect with clear computational error   15 (12)
incorrect/any other response   25 (26)
Working used: horizontal algorithm   39 (23)
  vertical algorithm   25 (39)

Total score:
10
  38 (43)
8–9
  42 (34)
6–7
  14 (13)
4–5
  5 (6)
0–3  
1 (4)
Subgroup Analysis [Click on charts to enlarge] :
Year 8


Commentary:
This task is notable for the high performance of Pasifika students. Overall, performance in 2009 is very similar to performance in 2005.