Question

Solve the following using distributive property. a) 78 X 8 + 78 X 2 b) 50 X ( 20 + 5) c) 120 X 3 + 120 X 4

Answer 1

Answer:

a) 780 (b) 1250 (c) 840

Step-by-step explanation:

Using distributive property - a X b + a X c = a X (b+c)

OR a X (b+c) = a X b + a X c

a) 78 X 8 + 78 X 2 = 78 X (8+2)

=78 X 10 = 780

b) 50 X (20+5) = 50 X 20 + 50 X 5

=1000+250=1250

c) 120 X 3+ 120 X 4=120 X (3+4)

=120 X 7 = 840