Datrys 9+2(2+8)-5(1+2)+3(4+5)=

$$9 + 2 ( 2 + 8 ) - 5 ( 1 + 2 ) + 3 ( 4 + 5 ) =$$

Enrhifo

$$41$$

Camau Ateb

Adio 2 a 8 i gael 10.

$$9+2\times 10-5\left(1+2\right)+3\left(4+5\right)$$

Lluosi 2 a 10 i gael 20.

$$9+20-5\left(1+2\right)+3\left(4+5\right)$$

Adio 9 a 20 i gael 29.

$$29-5\left(1+2\right)+3\left(4+5\right)$$

Adio 1 a 2 i gael 3.

$$29-5\times 3+3\left(4+5\right)$$

Lluosi 5 a 3 i gael 15.

$$29-15+3\left(4+5\right)$$

Tynnu 15 o 29 i gael 14.

$$14+3\left(4+5\right)$$

Adio 4 a 5 i gael 9.

$$14+3\times 9$$

Lluosi 3 a 9 i gael 27.

$$14+27$$

Adio 14 a 27 i gael 41.

$$41$$

Ffactor

$$41$$