358 WordsFeb 7, 20112 Pages

Revision for math final exams for Grade8
Mathematics Department Grade (8) 1st Semester Final Work Sheet Date: 30/12/2010 Ques.1: Fill in the following table: The number Correct to 2 d.p. 0.009999 33.065 195.195 0.123 0.00001818 Ques.2: Write the following in standard form: a) Name:
Correct to 3 s.f.
In standard form
b)
c)
1
Ques.3: Estimate roughly each of the following: a)
b)
c)
Ques.4: Find the nth term in each of the following: a) 2, 4, 8, 16, 32,………………………………………..
b) -5, -1, 3, 7, 11,………………………………………..
2
c) 7, 5, 3, 1,…………………………………………………
d)
………………………………………………
e) 1, 2, 3, 4, 5,……………………………………………..
Ques.5: Given the sequence 5, 11, 17, 23, 26,………………………………. a) Write down the next two terms.
b) Find the 16th term.
c) Find the term equal to 179.
3
Ques.6: Write the following as a fraction: a) 0.15 =
b)
c)
Ques.7: Find the value of . a)
b)
4
Ques.8: Solve the following equations: a)
b)
c)
5
Ques.9: Solve the following inequalities: a)
b)
and
c)
6
Ques.10: Solve the following simultaneous equations
Ques.11: Solve each problem by forming two pairs of simultaneous equations: a) Find two numbers where three times the smaller number exceeds the larger by 5 and the sum of the numbers is 11.
7
b) Twice the difference between two numbers is 8. The sum of the greater number and twice the smaller number is 13. Find the numbers.
Ques.12: In the following matrices, the matrices have the following values:
A=
;
B=
;
C=
D=
;
E=
;
F=
;
G=
;
H=
;
J=
;
K=
8
Calculate the resultant value for each question where possible. a) A + B =
b) G – J =
c) DJ=
d) 2E – 3K=
9
e) HK =
f)
=
g) FO =
10
Ques.2: Find the value of letters: a)
b)
c)
11
d)
Ques.13: The following

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