Question

Expand x(a+b+c).
Hence, without using a calculator, evaluate 42x111.

Answer 1

42=7*3*2

111=37*3

so hence there are many ways we can use the 1, 10 and the hundred houses to execute the problem As my Friend said in the above solution we can take that

=42(100+10+1)

=4200+420+42

=Which Finally gives us 4262

Answer 2

Explanation:

42(100+10+1)

= 4200 + 420 + 42

= 4,662