Question

4.15.17+5.12.17+6.10.56

Answer 1

4.15.17=1020

5.12.17=1020

6.10.56=3360

4.15.17+5.12.17+6.10.56=1020+1020+3360=5400

K nhé MN?????????

Hok tốt!!!!!!!

Answer 2

4 . 15 . 17 + 5 . 12 . 17 + 6 . 10 . 56

= 17 . ( 4 . 15 + 5 . 12 ) + 6 . 10 . 56

= 17 . ( 60 + 60 ) + 6 . 10 . 56

= 17 . 120 + 6 . 10 . 56

= 2040 + 3360

= 5400

Answer 3

   4.15.17 + 5.12.17 + 6.10.56

= 60.17 + 60.17 + 60.56

= 60( 17 + 17 + 56 )

= 60 . 90

= 5400

Answer 4

= 60.17+60.17+60.56

= 60.(17.2+56)

= 60.( 34+56)

=60.90

=5400