Whakaoti i te {l}{15+12:4-3*2}{2*(2+3)-20:(1+3)}

$$\left. \begin{array} { l } { 15 + 12 : 4 - 3 \times 2 } \\ { 2 \times ( 2 + 3 ) - 20 : ( 1 + 3 ) } \end{array} \right.$$

Kōmaka

$$5,12$$

Ngā Upane Otinga

Whakawehea te 12 ki te 4, kia riro ko 3.

$$sort(15+3-3\times 2,2\left(2+3\right)-\frac{20}{1+3})$$

Tāpirihia te 15 ki te 3, ka 18.

$$sort(18-3\times 2,2\left(2+3\right)-\frac{20}{1+3})$$

Whakareatia te 3 ki te 2, ka 6.

$$sort(18-6,2\left(2+3\right)-\frac{20}{1+3})$$

Tangohia te 6 i te 18, ka 12.

$$sort(12,2\left(2+3\right)-\frac{20}{1+3})$$

Tāpirihia te 2 ki te 3, ka 5.

$$sort(12,2\times 5-\frac{20}{1+3})$$

Whakareatia te 2 ki te 5, ka 10.

$$sort(12,10-\frac{20}{1+3})$$

Tāpirihia te 1 ki te 3, ka 4.

$$sort(12,10-\frac{20}{4})$$

Whakawehea te 20 ki te 4, kia riro ko 5.

$$sort(12,10-5)$$

Tangohia te 5 i te 10, ka 5.

$$sort(12,5)$$

Hei kōmaka i te rārangi, me tīmata mai i tētahi huānga 12 kotahi.

$$12$$

Me kōkuhu te 5 ki te tauwāhi tika i te rārangi hōu.

$$5,12$$

Aromātai

$$12,\ 5$$