Question
Complete the addition-subtraction box.



| $\frac{2}{3}$ | $\frac{4}{3}$ | $2$ |
| $\frac{1}{3}$ | $\frac{2}{3}$ | $1$ |
| $\frac{1}{3}$ | $\frac{2}{3}$ | $1$ |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| No. | Shapes | Rough figure | Number of lines of symmetry |
| $(i)$ | Scalene triangle | ![]() |
$0$ |
| $(ii)$ | Isosceles triangle | ![]() |
$1$ |
| $(iii)$ | Equilateral triangle | ||
| $(iv)$ | Rectangle | ||
| $(v)$ | Square | ||
| $(vi)$ | Parallelogram | ||
| $(vii)$ | Rhombus | ||
| $(viii)$ | Line | ||
| $(ix)$ | Line segment | ||
| $(x)$ | Angle | ||
| $(xi)$ | Isosceles trapezium | ||
| $(xii)$ | Kite | ||
| $(xiii)$ | Arrow head | ||
| $(xiv)$ | Semi-circle | ||
| $(xv)$ | Circle | ||
| $(xvi)$ | Regular pentagon | ||
| $(xvii)$ | Regular pentagon |