# First Term Examination Mathematics Basic 7 (JSS 1)

CRN INTERNATIONAL SCHOOL

FIRST TERM EXAMINATION

BASIC 7/JSS 1

SECTION A

MATHEMATICS

Answer all the Questions in this section.

1. What is 2/5 of N200?

(a) N40

(b) N8

(c) N100

(d) N80

2. 8371 to the nearest hundred is ______________________.

(a) 8370

(b) 8460

(c) 8500

(d) 8300

3. ______________________ are examples of prime numbers.

(a) 2, 4, 6, 8, 10

(b) 2, 3, 5, 7, 11

(c) 1, 2, 3, 4, 5

(d) 3, 5, 7, 9, 11

4. Solve 61/2 – 21/5

(a) 33/10

(b) 47/10

(c) 43/10

(d) 37/10

5. ______________________ is an example of an improper fraction.

(a) 5/8

(b) 23/5

(c) 19/23

(d) 51/13

6. Eight billion two hundred and eleven million twenty one thousand and nine in figure is ______________________.

(a) 8 211 021 009

(b) 802 112 109

(c) 82 011 021 009

(d) 800 211 021 009

7. Convert 40% to fraction.

(a) 3/10

(b) 2/5

(c) 1/5

(d) 3/5

8. What is the approximate value of 43 X 15?

(a) 645

(b) 600

(c) 800

(d) 845

9. 3/4 in percentage is ______________________.

(a) 25%

(b) 85%

(c) 50%

(d) 75%

10. Fill in the gap 981 529, _________________, 981 531, 981 532.

(a) 998 530

(b) 981 629

(c) 981 729

(d) 981 534

11. Write in words 3 000 025.

(a) Three hundred thousand and twenty five.

(b) Three million and twenty five.

(c) Thirty thousand and twenty five.

(d) Thirty million and twenty five.

12. Round off 873415 to the nearest tens of thousand.

(a) 873 000

(b) 887 000

(c) 90 000

(d) 873 400

13. Find the HCF of 27 and 36.

(a) 6

(b) 3

(c) 18

(d) 9

14. 7/9 is equivalent to ______________________.

(a) 14/27

(b) 16/18

(c) 9/11

(d) 28/36

15. Convert 2/7 to decimal and approximate to 2 d.p.

(a) 0.29

(b) 0.28

(c) 0.285

(d) 0.3

16. What is the LCM of 8, 12 and 20?

(a) 72

(b) 35

(c) 120

(d) 144

(a) 81/6

(b) 81/5

(c) 85/6

(d) 85/12

18. Prime numbers are numbers that can only be divided by ______________________ and ______________________ without leaving any reminder.

(a) 3 and 5

(b) 1 and itself

(c) 1 and 2

(d) 1 and 7

19. 135/6 mixed fraction is ______________________.

(a) 221/2

(b) 224/6

(c) 201/2

(d) 203/6

20. 0.25 in fraction is ………………………………

(a) 25/1000

(b) 1/4

(c) 25/10

(d) 1/40

PART B – THEORY

ATTEMPT ANY FOUR QUESTIONS

1a. Convert the following fractions to decimals;

I. 5/6

II. 4/5

1b. Convert the following decimals to percentage.

I. 0.123

II. 0.045

2a. Write the following percentages as a fraction;

I. 55%

II. 28%

2bI. Find 47% of N47, 000.

II. What is ¾ of 168m?

3a. Find the LCM of 45, 60 and 90.

3b. What are the factors of the following numbers?

I. 75

II. 120

4a. Find the HCF of 40, 60 and 120.

4b. Write out the prime numbers between 1-100.

5a. Solve 42/5-24/5

5b. Arrange 5/6, 2/3, 4/5, ¾ in an ascending order.

6a. 1kg of flour cost N65.00. Calculate the number of kg in a bag of flour if the bag is sold for N1959.

6b. Approximate the following:

I. 1367459 to the nearest million.

II. 89705 to the nearest tens of thousand.

III. 63.725 to 1 decimal place.

IV. 71.84 to 1 significant figure.

V. 802.543 to 2 significant places.

GOOD LUCK