1) Verify a-(-b) = a + b for the following values of ‘a’ and ‘b’.
(a)
(b)
(c)
a = 75,
a = 118,
a= 25,
b = 84
b = 125
b = 30
2) Write down a pair of integers whose
(a) Sum is – 3
(b) Sum is 0
(c) Difference is 2
(d)
Difference is – 5
3) Verify the following:
a) (-21) ×[(-4) + (−6)] = [(-21) × (-4)] + [(−21) × (−6)]
b) 15 x [6+ (-3)] = [15 x 6] + [15 x .
c) (-15) x[(-8) + (−6)] = -15) x (-8)] + [(-15) × (-6)]
4) Evaluate :
a) (-100) + 5
b) (-36)
c) (-41) [(-40) + (-1)]
d) 0+ (-18)
e) [(-36) 12] + 3
f) (-50) + (50)
g) 60 ÷ (-6)
h) (-48) – 48
Step-by-step explanation:
(a) , 27+(-30)= -3
(b) , 2+(-2) = 0
(c ) 80-78 = 2
(d) 45 – 50 = -5
hope it helps