Question

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)
NCERT Class 7th Mathematics Chapter 1 Integers

Answer 1

(a) -3
(b) -225
(c) 630
(d) 316
(e) 0
(f) 1320
(g) 162
(h) -360
(i) -24
(j) 36

Answer 2

(a) 3 × (–1) 
= -3

(b) (–1) × 225
= -225

(c) (–21) × (–30) 
= 630

(d) (–316) × (–1)
= 316

(e) (–15) × 0 × (–18) 
= 0

(f) (–12) × (–11) × (10)
= 1320

(g) 9 × (–3) × (– 6) 
= 162

(h) (–18) × (–5) × (– 4)
= -360

(i) (–1) × (–2) × (–3) × 4 
= -24

(j) (–3) × (–6) × (–2) × (–1)
= 36