| Approach: |
Independent |
|
Level: Year
8 |
| Focus: |
Multiplying
without a calculator |
|
| Resources:
|
Answer
booklet |
|
|
| Questions/instructions: |
|
Work
out the answers to the multiplication questions. Show how you
work out your answers.
|
|
| |
|
|
| |
%
responses
2009 ('05) |
y4 |
y8 |
| 1.
22 × 3 = [ 66 ] |
correct
|
|
88
(93) |
| incorrect
with clear computational error |
|
2
(0) |
| Working
used: |
horizontal
strategy |
|
39
(22) |
| |
vertical
algorithm |
|
17
(39) |
| 2.
39 × 6 = [ 234 ] |
correct
|
|
56
(63) |
| incorrect
with clear computational error |
|
7
(4) |
| Working
used: |
horizontal
strategy |
|
37
(18) |
| |
vertical
algorithm |
|
22
(48) |
| 3.
4 × 421 = [ 1684 ] |
correct
|
|
64
(63) |
| incorrect
with clear computational error |
|
6
(7) |
| Working
used: |
horizontal
strategy |
|
36
(16) |
| |
vertical
algorithm |
|
22
(50) |
| 4.
596 × 2 = [ 1192 ] |
correct
|
|
64
(75) |
| incorrect
with clear computational error |
|
7
(6) |
| Working
used: |
horizontal
strategy |
|
33
(13) |
| |
vertical
algorithm |
|
24
(54) |
| 5.
5 × 2808 = [ 14040 ] |
correct
|
|
47
(61) |
| incorrect
with clear computational error |
|
8
(4) |
| Working
used: |
horizontal
strategy |
|
30
(11) |
| |
vertical
algorithm |
|
24
(53) |
| 6.
59 × 32 = [ 1888 ] |
correct
|
|
25
(44) |
| incorrect
with clear computational error |
|
7
(11) |
| Working
used: |
horizontal
strategy |
|
23
(5) |
| |
vertical
algorithm |
|
27
(57) |
| 7.
64 × 4037 = [ 258368 ] |
correct
|
|
17
(30) |
| incorrect
with clear computational error |
|
7
(5) |
| Working
used: |
horizontal
strategy |
|
14
(4) |
| |
vertical
algorithm |
|
29
(53) |
|
Total
score: |
12–14
|
|
24
(39) |
9–11
|
|
23
(22) |
6–8
|
|
21
(19) |
3–5
|
|
14
(8) |
| 0–2
|
|
18
(12) |
