| Approach: |
Independent |
|
Level: Year
8 |
| Focus: |
Adding
without a calculator |
|
| Resources:
|
Answer
booklet |
|
|
| 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) |
