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JIIL AL-JADIID PRIMARY SCHOOL 2
Tell: 063-4420962 – 065-442062
MONTHLY EXAMINATION OF January 2021 In grade 7
Subject: Mathematics
Grade:
Name:___________________________________________________ Date: __\___\___
Part One: Multiple Choice ( Circle the correct answer)
1. Changing (58)10 into base 5 is
A: (213)5
B: (314)5
𝟏
𝟏
C: (231)5
D: (314)5
𝟔
2. Evaluate (𝟐 + 𝟑) x 𝟓
3.
A:
1
𝟏
Change into decimal
𝟏𝟔
B:
3
5
C:
6
2
D: 1
3
A: 0.125
B: 0.0625
C: 0.625
4. Expand and simplify (x + 1)(x + 1)
A: x² +2x+1
B: x² + 3x +1
C: x² - 2x +1
5. The solution of the equation 5x +4 = 3x + 8 is:
A: 2
B: 3
C: 1
6. If a = 3 and b = 4, what is the value of a3 – b4 |
A: - 27
B: - 37
C: 27
7. Find the value of x in the equation 3(x – 1) = 18
A: 5
B: -5
C: 7
8. Dividing 672 shillings among Ali, Omer and Abdi in the
get:
A: 288 sh
B: 264 sh
C: 260 sh
9. Simplifying (7x2 – 2xy) – (5x2 – 3xy)
A: 2x2 – 5xy
B: 2x2 – 5xy
C: 2x2 + xy
10. Expand the expression(2x + 3) (3x + 5)
A: 6x2 + 19x + 15 B: 6x2 -19x – 15 C: 6x2 - 19x + 15
11. Solve the inequality 12 + 4x ≥ 16
A: x ≥ 1
B: x ≥ 3
C: x ≥ 4
12. Simplify 3(m+ 4n) + 3(2m + n)
A: 9m + 15n
B: 9m + 7n
C: 5m + 12n
𝐱
𝟓
13. Solve for x: =
A: 10
14. Simplify
A:
𝟏𝟕𝐤+𝟏𝟗
𝟐𝟎
𝐤+𝟑
𝟒
𝟒
𝟐
+
𝟑𝐤+𝟏
B: 5
C: 8
D: 0.3125
D: x² -3x +1
D: 7
D: 37
D: -7
ratio 7:5:9. Then Ali will
D: 224 sh
D: 2x2 - xy
D: 5x2 + 19x + 15
D: x≥ 5
D: 5m + 7n
D: 4
𝟓
B:
𝟏𝟕𝐤−𝟏𝟗
𝟐𝟎
Instructor by Khadar Ali Omer …
C:
𝟕𝐤+𝟏𝟏
𝟐𝟎
D:
𝟕𝐤−𝟏𝟏
𝟐𝟎
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Area of square plot land is 529cm2. Calculate the length of side
A: 25cm
B: 24cm
C: 23cm
D: 22cm
16. -2 x (-4) is equal to
A: 8
B: -2
C: 6
D: -4
17. Find the value of x in the equation 2(6x + 2) = 2(2x + 10)
A: 2
B: -2
C: 7
D: -7
18. 40% of 1250 equals
A: 500
B: 400
C: 125
D: 300
19. Which of the following sets is an infinite set?
A: The set of Somali alphabet.
C: The set of all integers.
B: The set of days of the week.
D: The set of the months of the year.
20. If Omer and Ali collected an amount of $ 640 in the ratio of 3:2 respectively,
what is the Ali’s money?
A: $384
B: $128
C: $256
D: $480
21. Find the value of x this equation (2x - 2)+ 3(x - 1)= 5
A: 2
B: 3
C: 4
D: 1
15.
The product of 81 and 36 is
A: 16
B: 24
23. Solve the inequality 12 + 4x ≥ 16
22.
24.
A: x ≥ 1
B: x ≥ 3
The square root of 225 is
A: 25
B: 15
C: 36
D: 54
C: x ≥ 4
D: x≥ 5
C: 20
D: 35
What is the value of 132
A: 196
B: 169
C: 625
26. Which of the following sets is an empty set?
A: Set N ( Triangles with four sides)
B: Set M ( Whole numbers between 15 and 25)
C: Set O ( Even numbers less than 8)
D: Set P ( Prime numbers greater than 11)
25.
Expansion of (x + 3)(x - 1) gives
A: x² + 2x – 3
B: x² + 3x+3
C: x²+3x+4
28. The square root of 16 is
A: 4
B: 5
C: 6
29. If Q = {p: p is a prime numbers less than 10}, then P is
27.
A: (2,3,5,7)
B: ( 1,2,3,5,7)
Instructor by Khadar Ali Omer …
C: (2,3,5,7,9)
D: 144
D: x²-2x+3
D: 8
D: (1,2,3,5,7,9)
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30.
A:
B:
31.
A:
32.
A:
33.
A:
34.
A:
35.
A:
IF Set G is ( 2, 3, 4, 5, 6) and set F is ( 6, 8, 10, 12) than GUF is .
(2, 3, 4, 5, 6, 8, 10, 12, )
C: ( 2, 3, 5, 6, 7, 12 )
( 2, 3, 4 )
D: (3, 4, 5, 6, 8)
(a + b)² is:
a² - b²
B: a² + 2ab + b²
C: a + 2b
D: a - 2b
Simplify: 3(x+4y)+4(2x+y).
11x+12y
B: 11x+16y
C: 16x+11y
D: 12x+16y
The simplest form of the ratio 24:18:12
4:3:2
B: 3:2:4
C: 2:4:3
D: 4:2:3
The area of square fish pond is 36cm2. What is the length of the square?
4
B: 5
C: 6
D: 8
Simplify :
5x+21
6
𝒙+𝟑
𝟐
+
𝒙+𝟓
𝟑
B:
4x+16
6
(𝟏𝟐𝟑𝟒)𝟓 Change to base 10
A: (194)𝟏𝟎
B: (96)𝟏𝟎
37. (10101)𝟐 Change to base 10
C:
3x+4
6
D:
2x+21
6
36.
A: 21
B: 19
C: (184)𝟏𝟎
D: (86)𝟏𝟎
C: 20
D: 18
Ahmed is a member of SONYO. We can write like this:
A: Ahmed∈Sonyo
C: Ahmed=Sonyo
B: Ahmed∈ Sonyo
D: None
38.
39.
The name of this set N= { 1, 2, 3, 4, …..) is:
A: Finite Set
B: Infinite Set
40. The opposite of – 3 is:
A: + 4
B: + 2
C: Empty Set
D: None
C: + 3
D: – 3
Part Two: Structured Questions ( Answer all the question)
1.
The sum of three consecutive whole numbers is 99. Find the numbers?
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Instructor by Khadar Ali Omer …
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Evaluate the following if x = 3, y = 2 and z = 4
a: 3x + 4z + 5y
b. 3x2 + 2z + y2
2.
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Solve the value of x:
3.
a: 3 (2x+ 8) – 3 ( x – 5 ) = 40
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If set A = (1, 3, 5, 7, and 9) and set B= (2, 3, 5, 7, 22, and 13) find
a: AUB
b. A ∩ B
4.
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A farmer has 180 animals in his farm. If the ratio of cattle, goats and camels is
4 : 9 : 5 , find the number of
a) Cattle
5.
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Instructor by Khadar Ali Omer …
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b) Goats
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c) Camels
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6.
Find the shaded area of this figures
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7. The salary of a teacher increased in a ratio 8:5. If the old pay was $ 1500 what is
the new pay?
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8. Calculate
(1234)5 + (4342)5
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Instructor by Khadar Ali Omer …
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