Question

tính (tính nhanh nếu có thể)

27 x 31 + 31 x 73

16 x 98 + 16 x 2

Answer 1

27 x 31 + 31 x 73

= 31 x ( 27 x 73 )

= 31 x 100

= 3100

16 x 98 + 16 x 2

= 16 x ( 98 + 2 )

= 16 x 100

= 1600

Answer 2

31*(27+73)=31*100=3100

16*(98+2)=16*100=1600

k mik

Answer 3

27 x 31 + 31 x 73

=31x(27+73)

=31x100

=3100

16x98+16x2

=16x(98+2)

=16x100

=1600

tk nha bạn

thank you bạn

(^_^)

Answer 4

27 x 31 + 31 x 73 

= 31 x ( 27 + 73) 

= 31 x 100 

= 3100

16 x 98 + 16 x 2 

= 16 x ( 98 + 2) 

= 16 x 100 

= 1600

Answer 5

31 + < 27 * 73 >

        = 31 + 1971

        =      2002

 16 * < 98 + 2 >

                  =16 * 100

                   1600

Answer 6

a) 27x31+31x73

= 31x(27 + 73)

= 31x100

= 3100

b) 16x98 + 16x2

= 16x(98+2)

= 16x100

= 1600

Answer 7

27 x 31 + 31 x 73

= 31 ( 27 + 73 )

= 31 * 100

= 3100

16 x 98 + 16 x 2

= 16 ( 98 + 2 ) 

= 16 * 100 

= 1600

k mk nha