72×49=72×50-72× ________________
Find the missing term:
By Distributive multiplication over subtraction:
a×(b-c)=a×b-a×c
⇒72×49=72×(50-1)=72×50-72×1
Hence, the missing term is 1.
Question 19
In standard form 72 crore is written as: (a)72×107 (b)72×108 (c)7.2×108 (d)7.2×107
Name the property represented by
72×(48+2)=72×48+72×2
Name the property used: -72×26=26×(-72)