Question

TINH NHANH :

( 36 + 54 ) x 7 + 7 x 9 + 7 

AI NHANH MINH TICK !

Answer 1

 ( 36 + 54 ) x 7 + 7 x 9 + 7 = 90 x 7 + 7 x 9 + 7 x 1 

                                       = ( 90 + 9 + 1 ) x 7

                                       = 100 x 7

                                      = 700

Answer 2

( 36 + 54 ) x 7 + 7  x 9 + 7

= 90 x 7 + 7 x 9 + 7

= 7 x ( 90 + 9 +1 )

= 7x 100

= 700

Answer 3

( 36 + 54 ) x 7 + 7 x 9 + 7

= 90 x 7 + 7 x 9 + 7

= 630 + 63 + 7

= 200

Answer 4

(36+54)x7+7x9+7

=90x7+7x9+7x1

=(90+9+1)x7

=100x7

=700

Answer 5

(36+54) * 7 + 7*9 +7

= 100 * 7 +63 +7

=700 +70

= 770