Question
Add and Subtract
| $ $ |
$2 6$ | $ $ |
$ $ |
$7 6$ | $ $ |
$ $ |
$8 2$ |
| $+$ | $1 6$ | $ $ |
$−$ | $2 8$ | $ $ |
$−$ | $4 9$ |







There are ____________ standing lines, ____________ slanting lines and ____________ curved lines in the above design.