Open Sentences - JSS1 Mathematics Past Questions and Answers - page 1
1
Which of the following is an example of using a letter to represent a number?
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A
2+3=5
B
π₯+2=7
C
10β4=6
D
8Γ3=24
2
Which of the following is a closed sentence?
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A
π¦+4=9
B
3+5=8
C
π₯β2=5
D
2π¦= 10
3
What is the solution to the open sentence π₯+6=11?
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A
4
B
5
C
6
D
7
4
Which of the following is an open sentence?
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A
4+5=9
B
π₯Γ3=15
C
6Γ·2=3
D
7β3=4
5
Given the open sentence 2π¦β3=5, which value of π¦ makes the sentence true?
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A
3
B
4
C
6
D
5
6
What is the value of π₯ in the open sentence π₯β4= 10?
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A
14
B
6
C
10
D
16
7
Identify the open sentence:
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A
12Γ2=24
B
15+π₯=20
C
8β3=5
D
10Γ·5=2
8
What number from the set {1, 2, 3, 4} satisfies the open sentenceΒ 3π₯=9?
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A
1
B
2
C
3
D
4
9
Which of the following sentences is closed?
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A
π¦Γ4= 16
B
7+2=9
C
π₯β1= 5
D
5π¦= 25
10
What is the value of π¦ in the open sentence 3π¦+6=15?
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A
1
B
2
C
3
D
4
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