Numbers Worksheet-13

Numbers Worksheet-13

1. The set of negative numbers and whole numbers is called as

(a) natural numbers                    (b) integers

(c) positivenumbers                     (d) 0

2. The greatest negative integer

(a) –100                                         (b) does not exist

(c) –1                                               (d) –9

3. The number which is neither posi­tive nor negative is

(a) 1                     (b) 5                    (c) 0                    (d) 10

4. Absolute value of –58 is

(a) +58               (b) –58               (c) 58                  (d) 0

5. Absolute value of +16 is

(a) –16               (b) 0                    (c) +16                (d) 16

6. The smallest positive integer is

(a) 0                    (b) 100               (c) 1                     (d) 9

7. On a horizontal number line nega­tive numbers are located on the _____ side of 0.

(a) right             (b) left                (c) above            (d) below

8. Opposite of rise in temperature by 5°C

(a) +5°C

(b) –15°C

(c) fall in temperature by 5°C

(d) +10°C

9. Opposite of earning Rs. 100

(a) + Rs.100                                 (b) profit of Rs. 100

(c) spending Rs. 100                  (d) none

10. Integer used to represent walking 3 km towards the north is

(a) walking 3 km towards the south

(b) – 3 km

(c) + 3 km

(d) +3

11. Integer used to represent a with­drawal of Rs. 200 is

(a) depositing Rs. 200               (b) +Rs. 200

(c) –Rs. 200                                 (d) –200

12. Compare –28 ◻ –32

(a) <                    (b) =                  (c) *                     (d) >

13. Compare using (>, <, =, ¹) + 15 ◻ –27

(a) <                    (b) =                   (c) >                    (d) ×

14. Compare +42 ◻ +23

(a) <                    (b) >                   (c) =                    (d) ×

15. On a vertical number line positive numbers are placed ___0.

(a) right side     (b) left side        (c) above            (d) below

16. Opposite of profit of Rs. 250

(a) + Rs. 250                                 (b) loss of Rs. 250

(c) + 250                                        (d) none

17. Integer used to represent 30 km towards the west

(a) 30 km east                              (b) –30 km

(c) +30 km                                    (d) +30

18. (+12) + (+25) =

(a) +37               (b) +13               (c) +47               (d) –37

19. (–28) + (–32) =

(a) +60               (b) –60              (c) 0                    (d) 60

20. (–46) + (+15) =

(a) +31               (b) 31                  (c) –31                (d) none

Answer Key:

(1)-(b); (2)-(c); (3)-(c); (4)-(c); (5)-(d); (6)-(c); (7)-(b); (8)-(c); (9)-(c); (10)-(c); (11)-(c); (12)-(d); (13)-(c); (14)-(b); (15)-(c); (16)-(b); (17)-(b); (18)-(a); (19)-(b); (20)-(c)