Special Properties of Infinity
∞ + ∞ = ∞
-∞ + -∞ = -∞
∞ × ∞ = ∞
-∞ × -∞ = ∞
-∞ × ∞ = -∞
x + ∞ = ∞
x + (-∞) = -∞
x - ∞ = -∞
x - (-∞) = ∞
For x>0 :
x × ∞ = ∞
x × (-∞) = -∞
For x<0 :
x × ∞ = -∞
x × (-∞) = ∞

TRINITY INTERNATIONAL COLLEGE

TRINITY HILLS,  OFADA, OGUN STATE

FIRST TERM EXAMINATION 2013/2014 SESSION

 

CLASS: BASIC 8                                 SUBJECT: MATHEMATICS                                   TIME:  1 HOUR

PAPER 1:    MULTIPLE CHOICE

INSTRUCTIONS: Answer ALL questions. Each is followed by four options lettered A – D. Find out the correct option for each question and shade in pencil on your answer sheet the answer space which bears the same letter as the option you have chosen. Do not waste time on any question. If you find any difficult, go to others and finish them before you come back to the difficult one(s).

Give only ONE answer to each question.

1.       What is the place value of the 9 in 37.29 ?

          (A)  9 ´ 10^-4   (B)   9 ´ 10^-3   (C)   9 ´ 10^-2  (D)  9 ´ 10^-1

2.       Express 43,579 correct to the nearest thousand

          (A)  44 000   (B)  43 000   (C)  43 600   (D)  43 500

3.       Write 650 millionths in digits only

          (A) 0.000 65  (B)  0.006 5   (C)   0.065   (D)  0.65

4.       Express 0.00754 in standard form.

          (A) 7.54 x10^-5      (B) 7.54 x 10^-3   (C) 7.54x10^-2             (D) 7.54 x10^-1

5.       Find the median of this set of numbers: 8, 6, 3, 10, 6, 9

          (A)  9   (B)  8   (C)   7   (D)  6

6.      Express 9395 to 2 significant figures.

          (A)  9200    (B)9300   (C)  9400   (D) 9500

7.       What is the sum of 12.41, 120 and 0.426

          (A)  117.876   (B)  121.836    (C)  132.836    (D)   132.866   

8.       Simplify 

          (A)        (B)        (C)            (D)   

9.      One half of a number is equal to 6. What is the number?

          (A)   15   (B)    12   (C)   6    (D)   3

10.     Which is the greatest of these negative integers?

          (A)  -70 000  (B)   -7 000   (C)  -700  (D)  -70

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