Question

tính nhanh:

15 x 360 + 40 x 61 x 9 + 180 x 62 - 210 x 12

Answer 1

Nguyễn Hồng Vân

15 x 360 + 40 x 61 x 9 + 180 x 62 - 210 x 12

= 15 x 360 + 360 x 61 + 360 x 31 - 360 x 7

= ( 15 + 61 + 31 - 7 ) x 360

= 100 x 360 = 36000 

Answer 2

=5400+21960+11160-2520

=27090+8640

=35730

Answer 3

15 x 360 + 40 x 61 x 9 + 180 x 62 - 210 x 12

= 15 x 360 + 360 x 61 + 360 x 31 - 360 x 7

= ( 15 + 61 + 31 - 7 ) x 360

= 100 x 360

= 36000

Answer 4

15x360+40x61x9+180x62-210x12

=15x360+360x61+360x31-360x7

=360.(15+61+31-7)

=360.100

=36000