Last updated at Feb. 13, 2019 by Teachoo

Transcript

Ex 1.3, 9 Replace the blank with an integer to make it a true statement. (a) (–3) × _____ = 27 (−3) × _____ = 27 We know that 3 × 9 = 27 And −1 × −1 = 1 So, (−3) × (−9) = 27 Ex 1.3, 9 Replace the blank with an integer to make it a true statement. (b) 5 × _____ = –35 5 × _____ = −35 We know that 5 × 7 = 35 And 1 × −1 = −1 So, 5 × (−7) = −35 Ex 1.3, 9 Replace the blank with an integer to make it a true statement. (c) _____ × (– 8) = –56 _____ × (−8) = −56 We know that 7 × 8 = 56 And 1 × −1 = −1 So, 7 × (−8) = −56 Ex 1.3, 9 Replace the blank with an integer to make it a true statement. (d) _____ × (–12) = 132 _____ × (−12) = 132 We know that 11 × 12 = 132 And −1 × −1 = 1 So, (−11) × (−12) = 132

Ex 1.3

Ex 1.3, 1
Important

Ex 1.3, 2 (a) Important

Ex 1.3, 2 (b)

Ex 1.3, 3 (i)

Ex 1.3, 3 (ii)

Ex 1.3, 4

Ex 1.3, 5 (a) Important

Ex 1.3, 5 (b)

Ex 1.3, 5 (c)

Ex 1.3, 5 (d)

Ex 1.3, 5 (e)

Ex 1.3, 5 (f)

Ex 1.3, 5 (g)

Ex 1.3, 5 (h)

Ex 1.3, 6 Important

Ex 1.3, 7 Important

Ex 1.3, 8 Important

Ex 1.3, 9 You are here

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.