Datrys 10div[3+6div{2+4div2+4-(4div2)}]

$$10 \div [ 3 + 6 \div \{ 2 + 4 \div 2 + 4 - ( 4 \div 2 ) \} ]$$

Enrhifo

$$\frac{5}{2}=2.5$$

Camau Ateb

Rhannu 4 â 2 i gael 2.

$$\frac{10}{3+\frac{6}{2+2+4-\frac{4}{2}}}$$

Adio 2 a 2 i gael 4.

$$\frac{10}{3+\frac{6}{4+4-\frac{4}{2}}}$$

Adio 4 a 4 i gael 8.

$$\frac{10}{3+\frac{6}{8-\frac{4}{2}}}$$

Rhannu 4 â 2 i gael 2.

$$\frac{10}{3+\frac{6}{8-2}}$$

Tynnu 2 o 8 i gael 6.

$$\frac{10}{3+\frac{6}{6}}$$

Rhannu 6 â 6 i gael 1.

$$\frac{10}{3+1}$$

Adio 3 a 1 i gael 4.

$$\frac{10}{4}$$

Lleihau'r ffracsiwn \frac{10}{4} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$\frac{5}{2}$$

Ffactor

$$\frac{5}{2} = 2\frac{1}{2} = 2.5$$