These NCERT Solutions for Class 6 Maths Chapter 6 Integers Ex 6.2 Questions and Answers are prepared by our highly skilled subject experts.
NCERT Solutions for Class 6 Maths Chapter 6 Integers Exercise 6.2
Question 1.
Using the number line write the integer which is:
(a) 3 more than 5
(b) 5 more than -5
(c) 6 less than 2
(d) 3 less than -2
Answer:
(a) 8
Question 2.
Use number line and add the following integers:
(a) 9 +(-6)
(b) 5 + (-11)
(c) (-1) + (-7)
(d) (-5) + 10
(e) (-1) + (-2) + (-3)
(f) (-2)+ 8 +(-4)
Answer:
(a) 9 + (-6) = 3
(b) 5 + (-11) = -6
(c) ( – 1) + ( – 7) = -8
(d) (-5) + 10 = 5
(e) ( – 1) + ( – 2) + ( – 3) = -6
(f) ( – 2) + 8 + ( – 4) = 2
Question 3.
Add without using number line:
(a) 11 +(-7)
(b) (-13)+ (+18)
(c) (-10)+ (+19)
(d) (-250) + (+ 150)
(e) (-380) + (-270)
(f) (-217) + (-100)
Answer:
(a) 11 +(-7) = 11-7 = 4
(b) (-13)+ 18 = 5
(c) (-10)+ (+19) = -10+19 = 9
(d) (-250) + (+150) = -250 + 150 = -100
(e) (-380) + (-270) = -380 – 270 = -650
(f) (-217)+ (-100) = -217-100 = -317
Question 4.
Find the sum of:
(a) 137 and -354
(b) -52 and 52
(c) -312,39 and 192
(d) -50,-200 and 300
Answer:
(a) 137 + (-354) = 137 – 354 = -217
(b) (-52)+ 52 = 0
(c) (-312)+ 39 +192
= -312 + 231 = -81
(d) (-50) + (-200) + 300
= -50 – 200 + 300 = -250 + 300 = 50
Question 5.
Find the sum:
(a) (-7) + (-9) + 4 + 16
(b) (37) + (-2) + (-65) + (-8)
Answer:
(a) (-7) + (-9) + 4 + 16
= -7-9 + 4+ 16 =-16 + 20 = 4
(b) 37 +(-2) + (-65) + (-8)
= 37 – 2 – 65 – 8 = 37 – 75 = -38