Question

1+2+56+78+9

Answer 1

1+2+56+78+9

=(1+9)+(2+78)+56

=10+80+56

=146 nha 

Trần Thị Anh Thi

Answer 2

1+2+56+78+9

= 146

Answer 3

=146 k nha

Answer 4

1+2+56+78+9

=(1+9)+(2+78)+56

=10+80+56

=146

Answer 5

\(1+2+56+78+9\)

\(=\left(1+9\right)+\left(2+78\right)+56\)

\(=10+80+56\)

\(=90+56\)

\(=146\)

\(tích\)\(mk\) \(nha\)

Answer 6

\(1+2+56+78+9\)

\(=3+56+78+9\)

\(=59+78+9\)

\(=137+9\)

\(=146\)

\(~~~~~~~~\)

Answer 7

bang 146

Answer 8

1+2+56+78+9

=(1+9)+(2+78)+56

=10 + 80 + 56

=  146

Answer 9

\(\left(1+9\right)+\left(2+78\right)+56\)

\(10+80+56\)

\(146\)

Answer 10

1+2+56+78+9

=(1+9)+(2+78)+56

=  10  +  80    +56

=       90         +56

=         146 

Answer 11

1+2+56+78+9

=3+56+78+9

=59+78+9

=137+9

=146

Answer 12

146 nha

Answer 13

416

Answer 14

416