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OPM1501 OCT/NOV EXAM ANSWERS 2024
- Course
- OPM1501
- Institution
- University Of South Africa (Unisa)
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OPM1501OCTOBER EXAM ANSWERS
YEAR : 2024
, OPM1501
Oct/Nov 2024
Question 1
1.1 Complete the following function machines so that the inputs give the correct outputs.
8 …..
X9 72
(2)
a)
b) 270
…..
210
(2)
c) 135 ….
..
5
d) 170 (2)
+….
..
90
ANSWERS:
a) Input: 8 → Output: 72
• To get from 8 to 72, you need to multiply 8 by 9.
Function: ×9
b) Input: 270 → Output: -210
• To get from 270 to -210, subtract 480.
Function: -480
c) Input: 135 → Output: 5
• To get from 135 to 5, divide 135 by 27.
Function: ÷27
d) Input: 170 → Output: 90
• To get from 170 to 90, subtract 80.
Function: -80
Page 2 of 18
, OPM1501
Oct/Nov 2024
(3)
[09]
Question 2
2.1. Copy and complete the table below by describing how you decided whether the set
of number sets in the preceding column is a pattern or not:
Number set Pattern or not, a Description
pattern
7; 8; 10; 12; 14; … a) Pattern (2) b) The (2)
numbers
increase by
1, then 2,
then 2, and
then 2.
14; 28; 34; 41; 48; … c) Pattern (2) d) The (2)
differences
are 14, 6, 7,
and 7,
suggesting an
irregular
pattern.
8; 16; 24; 48; … e) Not a Pattern (2) f) The numbers(2)
do not follow a
consistent
additive or
multiplicative
pattern.
2.2. Illustrate the following numbers using base 10 blocks:
a) 541 (2)
• 5 hundreds blocks
• 4 tens blocks
• 1 unit block
b) 106 (2)
• 1 hundred block
• 0 tens blocks
• 6 unit blocks
c) 12 (2)
• 1 ten block
• 2 unit blocks
Page 3 of 18
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