Question

Tính:

a) 29.(-13)+27.(-29)+(-14).(-29)

b) 17.(-37)-23.37-46.(-37)

Answer 1

b) (-17) . 37 - 23 . 37 - (-46) . 37

= 37 . {(-17) - 23 - (-46)}

= 37 . 6 = 222

Answer 2

a) 29.(-13) +27.(-29)+(-14).-(29)

=(-29).13+ 27.(-29)+(-14).(-29)

=(-29).[13+27+(-14)]

=(-29).26

=-754

Answer 3

a/ 29.(-13)+27.(-29)+(-14).(-29)

= - 29 . [ 13 + 27 + ( -14 ) ]

= -29 . 26

= -754

b/ 17.(-37)-23.37-46.(-37)

= -37. [ 17 + 23 - 46  ]

= -37 . ( -6 )

= 222

Answer 4

Câu a là -754

Câu b là 1049.63

Answer 5

29 . (-13 ) + 27 . ( -29 ) + ( - 14 ) . ( - 29 )

=29 . ( -13 ) + ( - 27 ) . 29 + 14 . 29

= 29 . [-13 + (-27 ) + 14 ]

= 29 . ( - 26 )

= -754

b, 17 . ( -37 ) - 23 . 37 - 46 . ( -37 )

= -17 . 34 - 23 . 37 + 46 . 37

= 37 . ( - 17 - 23 + 46 )

= 37 . 6

= 222

Answer 6

a)

29 . (-13 ) + 27 . ( -29 ) + ( - 14 ) . ( - 29 )

=29 . ( -13 ) + ( - 27 ) . 29 + 14 . 29

= 29 . [-13 + (-27 ) + 14 ]

= 29 . ( - 26 )

= -754

b, 17 . ( -37 ) - 23 . 37 - 46 . ( -37 )

= -17 . 34 - 23 . 37 + 46 . 37

= 37 . ( - 17 - 23 + 46 )

= 37 . 6

= 222

Answer 7

\(\text{29 . (-13) + 27 . (-29) + (-14) . (-29)}\)

\(\text{= (-29) .13 + 27 . (-29) + (-14) . (-29)}\)

\(\text{= -29 . [13 + 27 + (-14)]}\)

\(\text{= -29 . 26}\)

\(\text{= -574}\)

Answer 8

😋

Answer 9

a, 29.(-13)+27.(-29)+(-14).(-29)

= -377+(-783)+406

= -745

b, 17.(-37) - 23. 37- 46. (-37)

=-629-851-(-1702)

=222

Answer 10

 

b) (-17) . 37 - 23 . 37 - (-46) . 37

= 37 . {(-17) - 23 - (-46)}

= 37 . 6 = 222