Find each of the following products:
(a) 3 × (–1)
(b) (–1) × 225
(c) (–21) × (–30)
(d) (–316) × (–1)
(e) (–15) × 0 × (–18)
(f) (–12) × (–11) × (10)
(g) 9 × (–3) × (– 6)
(h) (–18) × (–5) × (– 4)
(i) (–1) × (–2) × (–3) × 4
(j) (–3) × (–6) × (–2) × (–1)
(a) We have,
3 × (-1) = - 3
(b) We have,
(-1) × 225 = - 225
(c) We have,
(-21) × (-30) = -21 × -30
= 630
(d) We have,
(-316) × (-1) = - 316 × - 1
= 316
(e) We have,
(-15) × 0 × (-18) = - 15 × 0 × -18
= 0 × - 18
= 0
(f) We have,
(-12) × (-11) × 10 = 12 × -11 × 10
= 12 × - 110
= - 1320
(g) We have,
9 × (-3) × (-6) = 9 × -3 × -6
= - 27 × - 6
= 162
(h) We have,
(-18) × (-5) × (-4) = - 18 × - 5 × - 4
= 90 × - 4
= - 360
(i) We have,
(-1) × (-2) × (-3) × 4 = -1 × -2 × -3 × 4
= 2 × - 12
= - 24
(j) We have,
(-3) × (-6) × (-2) × (-1) = -3 × -6 × -2 × -1
= 18 × 2
= 36