Question

Tính Nhanh:

48 x 4 x 2 + 42 x 8 + 5 x 16

 

 

 

 

Answer 1

48 x 4 x 2 + 42 x 8 + 5 x 16

= 48 x 8 + 42 x 8 + 5 x 16

= ( 42 + 48 ) x 8 + 5 x 16

= 90 x 8 + 80

= 90 x 8 + 10 x 8

= ( 90 + 10 ) x 8

= 100 x 8

= 800

Answer 2

48 x 4 x 2 + 42 x 8 + 5 x 16

=96x4+84x4+20x4

=4.(96+84+20)=

200x4

=800

Answer 3

48 x 4 x 2 + 42 x 8 + 5 x 16

= 48 x 8 + 42 x 8 + 5 x 2 x 8

= 48 x 8 + 42 x 8 + 10 x 8

= ( 48 + 42 + 10 ) x 8

= 100 x 8

= 800

Answer 4

48x 4x2+42x8+5x16

=48x8+42x8+5x2x8

=48x8+42x8+10x8

=8x(48+42+10)

=8x100

=800

Answer 5

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