Question

Tinh nhanh:

23,19x35+23,19x66-23,19

Answer 1

= 23,19 x ( 35 + 66 - 1 )

= 23,19 x 100

= 2319

Answer 2

23,19. ( 66+35-1) = 23,19.100 =231,9

Answer 3

23,19 x 35 + 23,19 x 66 - 23,19

= 23,19 x ( 35 + 66 - 1 )

= 23,19 x 100

= 2319

Answer 4

23.19 x 35 + 23.19 x 66 - 23.19

= 23.19 x ( 35 + 66 - 1 )

= 23.19 x 100

= 2319

Answer 5

Ta có 

23,19 x ( 35 +  66 - 1 )

= 23,19 x 100 = 2319

Vậy số cần tìm là 2319

Answer 6

  23,19 x 35 + 23,19 x 66 - 23,19

= 23,19 x ( 35  + 66 - 1 )

= 23,19 x 100

= 2319