Integers : All counting numbers, negative of counting number and 0 are called integers.
integers denoted by Z
Z = {…., -3, -2, -1, 0, 1, 2, 3, ….. }
1. Which of the following is ordered from least to greatest?
A)-5, -12, 0, -3, -8
B) 0, -12, -8, -5, -3
C)-12, -8, -5, -3, 0
D) 0, -3, -5, -8, -12
2. Order of the integers -3, 6, -1, 4, -8, 5, -6
A) -3, 6, -1, 4, -8, 5, -6
B) 6,4, 5,-3, -1, -8, -6
C) 6, 4, 5, -1, -3,-6,-8
D) -1, -3,-6,-8 ,6, 4, 5
3. 6th integer to the left of –12 on a number line.
A) –12 B)-6
C) 6 D) 18
4. 45 + (-225)
A)-180 B) -512
C) 41 D) -128
5. (-275) + (-36)
A) -760 B) -311
C) -595 D) -763
6. (-49) + (-448)
A) -364 B) -497
C) -130 D) -819
7. (-280) + 306
A) -358 B) 26
C) -434 D) 64
8. (-8) – (-6) + (-8)
A)-12 B) -9
C) -16 D) -10
9. The sum of -373, 20, -3, -5 and 5 is
A) -356 B) 356
C) 406 D) -406
10. The value of -37 -(-15)-2 is ________
A) 24 B) -24
C) 54 D) -54
11. The value of 3+(-3)+(3)+(-3)+……(305 times)
A) 3 B) -3
C) 0 D) none
12. The sum of -405, 20, -15, -20 and 30 is
A)–390 B) 356
C) 406 D) –406
13. The sum of two integers is -300. If one of them is 60 then the other numbers is
A)360 B)–360
C)240 D)–240
14. The sum of two integers is –112.If one of the integers is –109, then the other integer is
A) 3 B) –3
C) 0 D) 221
15. A place is 45 metre above sea level and another place is 25 meter below sea level. What is the difference of level in metres between the two places?
A) 70 B) 20
C) 60 D) -20