Class 6 Maths Chapter 1 Practice Question Answers - Integers

Q1: ___ is called the Additive identity.
Ans: 0 is called the additive identity. This is because addition of zero to any number bears the same number.

Q2: −3 is the ___ of 3.
Ans: −3 is the additive inverse of 3. This is because on adding the numbers, we get zero, i.e., (−3) + 3 = 0.

Q3: ___ ÷ 483 = 0
Ans: 0

Q4: −843 ÷ ___ = 1
Ans: -843

Q5: Integers are denoted using the alphabet ___?
Ans: Integers are denoted using the alphabet Z.

Q6: −9 __ 5. Fill in the blanks.
Ans: −9 < 5

Q7: Compare −815 and −814.
Ans: −815 < −814

Q8: Say true or false. The absolute value of an integer is always greater than the integer.
Ans: True

Q9: The predecessor of 219 is 218. Say true or false.
Ans: Predecessor of a number is the one that comes before the number.
Predecessor of a number
= Number 1
= (−219) 1
= 220.
Hence the statement is false.

Q10:  (−14+6)___(−38−(−9)). Use >, <, =
Ans: Solving both sides, we get
(−14 + 6) __ (−38 − (−9))
−8 > −29

Q11: Add −9568 and −695.
Ans: Adding −9568 and −695,

Hence, the answer is −10,263.

Q12: Find the value of the following:
(a) −|−4|
(b) |7 − 4|
(c) 8 − |7|
Ans: (a) − |−4| = −4
(b) |7 − 4| = |3| = 3
(c) 8 − |7| = 8 − 7 = 1

Q13: Write in descending order: 21, 501, 2, 16, 81, 363.
Ans: 21, −2, −16, −81, −363, −501.

Q14: Write in ascending order: 365, 515, 102, 413, 7.
Ans: −515, −365, 7, 102, 413.

Q15: Write opposite of each of the following:
(a) A decrease of 9
(b) Spending Rs.500
Ans: (a) An increase of 9.
(b) Saving Rs.500.