Secondary 3, Mathematics, Worksheet 2: Arithmetic 1 – TBC, refer to remarks for details
Secondary 3, Mathematics, Worksheet 2: Arithmetic 1 – TBC, refer to remarks for details
NOTE: For answers in fractions, please enter in the following form:
a) Half: 1/2
b) One and a half: 1 1/2 (1 space 1/2)
c) One and three quarter: 1 3/4 (1 space 3/4)
There are a total of 20 questions.
Time Limit: minutes
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Completed:
a) 20 questions already input into LMS (including sub questions: Q1-Q3, Q6 & Q7).
b) categorized.
To follow up:
a) marks allocation
b) time limit
c) workings / explanations (if any)d) review and determine if format (used fill in the blanks)/ presentation is appropriate
e) problem of how students input square and cubes as answers (specifically for Q5 & Q9)
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Question 1 of 20
1. Question
1 point(s)Evaluate:
30 – 18 / (-6) + (-3) x (-5)
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Answer:
CorrectIncorrect -
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Question 2 of 20
2. Question
1 point(s)Evaluate:
[-12 – ( 3-7 )$^3$ ] $\div$ ( -4 )
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Answer:
CorrectIncorrect -
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Question 3 of 20
3. Question
1 point(s)Evaluate:
8/9 x 3/4
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Answer:
CorrectIncorrect -
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Question 4 of 20
4. Question
1 point(s)Evaluate:
– 1/2/5 x 2/3
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Answer:
CorrectIncorrect -
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Question 5 of 20
5. Question
1 point(s)Evaluate:
3/5 + 1/4
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Answer:
CorrectIncorrect -
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Question 6 of 20
6. Question
1 point(s)Evaluate:
$\frac{1}{4}$ $\div$ 8
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Answer:
CorrectIncorrect -
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Question 7 of 20
7. Question
1 point(s)Evaluate:
$\frac{1}{2}$ + 2$\frac{1}{4}$ + 3$\frac{3}{4}$
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Answer:
CorrectIncorrect -
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Question 8 of 20
8. Question
1 point(s)Evaluate:
$\frac{1}{4}$ $\div$ 2$\frac{5}{6}$ x 1$\frac{1}{5}$
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Answer:
CorrectIncorrect -
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Question 9 of 20
9. Question
1 point(s)Question: Find the highest common factor and lowest common factor of 270 and 504.
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Answer:
HCF:
LCM:
CorrectIncorrect -
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Question 10 of 20
10. Question
1 point(s)Question: Express 5184 as the product of its prime factors. Hence, find the square root of 5184.
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Answer:
Product of 5184 prime factor is:
Square root of 5184 =
CorrectIncorrect -
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Question 11 of 20
11. Question
1 point(s)Estimate, correct to 1 significant figure the value of each of the following:
42.95723 – 27.24065
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Answer:
CorrectIncorrect -
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Question 12 of 20
12. Question
1 point(s)Estimate, correct to 1 significant figure the value of each of the following:
181.3 x 0.2025
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Answer:
CorrectIncorrect -
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Question 13 of 20
13. Question
1 point(s)Estimate, correct to 1 significant figure the value of each of the following:
34213 – 79.8
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Answer:
CorrectIncorrect -
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Question 14 of 20
14. Question
1 point(s)Estimate, correct to 1 significant figure the value of each of the following:
(6.03 x /17.01) – 1.999
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Answer:
CorrectIncorrect -
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Question 15 of 20
15. Question
1 point(s)Given that a and b are integers such that 3 < a <= 9 and -5 < b < 2, find :
The greatest possible value of a
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Answer:
CorrectIncorrect -
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Question 16 of 20
16. Question
1 point(s)Given that a and b are integers such that 3 < a <= 9 and -5 < b < 2, find :
The least possible value of $b^2$ – $a^2$
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Answer:
CorrectIncorrect -
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Question 17 of 20
17. Question
1 point(s)Given that a and b are integers such that 3 < a <= 9 and -5 < b < 2, find :
The value of b if $b^2$ = 9
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Answer:
CorrectIncorrect -
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Question 18 of 20
18. Question
1 point(s)An advertisement signboard has 3 different colored neon lights that flash at different intervals. The red neon light flashes every 15 seconds, the blue neon light flashes every 36 seconds and the green neon light flashes every 50 seconds. If all 3 neon lights flash together at 1900, find the next time they will flash together again.
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Answer:
CorrectIncorrect -
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Question 19 of 20
19. Question
1 point(s)Write 5832 as the product of its prime factors. Hence, find the value of 3 /5832.
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Answer:
Product of 5832 prime factor is:
Value of 3 /5832 is:
CorrectIncorrect -
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Question 20 of 20
20. Question
1 point(s)Find the HCF and LCM of 90 and 132.
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Answer:
HCF:
LCM:
CorrectIncorrect -