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)

Solution:

We will be using the concept of multiplication of integers to solve the given question.

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

☛ Check: NCERT Solutions for Class 7 Maths Chapter 1

Video Solution:

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 Solutions Class 7 Maths Chapter 1 Exercise 1.3 Question 1

Summary:

The value 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 are  a) -3 ; b) -225 ; c) 630 ; d) 316 ; e) 0 ; f) 1320 ; g) 162 ; h) -360 ; i) -24 and j) 36 respectively.

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