Question

Solve the following: (-7) x (-3) + (-6).
2. Evaluate: [(-5) x (-4)] + (-4).
3. Using number line, find [3 x (-4)].
4. Write five pair of integers (m, n) such that m ÷ n = -4. One of such pair is (-8, 2).

Answer 1

1. (-7) × (-3) + (-6)

= (+21) + (-6)

= 21 - 6

= +15

2. [(-5) × (-4)] + (-4)

= [+20] + (-4)

= 20 - 4

= +16

3. [3 × (-4)]

= (-12)

mark (-12) in number line

4. m ÷ n = -4

so, m = n×(-4)

let's n = 1,. (-1), 2 (-2), 3, (-3)

then. m = (-4), (4), (-8), (8), (-12), (12)

now,

five pairs will be, (-4,1), (4,-1), (-8,2), (8,-2), (-12,3), (12,-3)