Thinking Mathematically (6th Edition)

$1302_{seven}$
Rightmost column: 5+4=9=1$\times$7+2=$12_{seven}$ record the 2, carry the 1. . $( \ \ \ 1 \ \ )$ . ( 6 4 5 $)_{seven}$ +( 3 2 4 $)_{seven}$ $\_\_\_\_\_\_\_$ $(\ \ \ \ \ \ \ \ 2 )_{seven}$ Next column: $1+4+2=7=1\times7+0\times1=10_{seven}$ record 0, carry 1, . $( \ 1 \ 1 \ \ )$ . ( 6 4 5 $)_{seven}$ +( 3 2 4 $)_{seven}$ $\_\_\_\_\_\_\_$ $(\ \ \ \ \ 0 \ 2 )_{seven}$ Next column: $1+6+3=10=1\times7+1\times1=13_{seven}$ record 13 . $( \ 1 \ 1 \ \ )$ . ( 6 4 5 $)_{seven}$ +( 3 2 4 $)_{seven}$ $\_\_\_\_\_\_\_$ $( 1 \ 3 \ 0 \ 2 )_{seven}$