Question

45 x 64 + 45 x 34 + 90

Answer 1

\(=45\times64+45\times34+45\times2\\ =45\times\left(64+34+2\right)\\ =45\times100=4500\)

Answer 2

= 45 x (64 + 34) +90

= 45 x 98 +90

= 4410 +90

= 4420

Answer 3

=45×64+45×34+45×2

=45×(64+34+2)

=45×100

=4500

Answer 4

4500

Answer 5

45 x 64 + 45 x 34 + 90 

= 45 x 64 + 45 x 34 + 45 x 2 

= 45 x ( 64 + 34 + 2) 

= 45 x 100 

= 4500