Question

Find the product, using suitable properties. (i) 26 × (–48) + (–48) × (–36) (ii) 8 × 53 × (–125) (iii) 15 × (–25) × (–4) × (–10) (iv) (–41) × 102 (v) 625 × (–35) + (–625) × 65 (vi) 7 × (50 – 2) (vii) (–17) × (–29) (viii) (–57) × (–19) + 57

SCERT Class 7 Telangana, Maths Chapter 1 Integers

Answer 1

i)
-48(26+-36)
-48(-10)
=480

ii)
8(-125)*53
= -1000*53
= -53000

iii)
-4(-25)*(15)*-10
=100*150
=15000

iv)-41*100 + -41*2
    = -4100+-82
     =  -4182

v)625(-35+65)
 =625(30)
= 18750

vi)7*50 - 7*2
    =350 -14
    =336

vii)493

viii)1083+57
     =1140

Answer 2

Answer:

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