Whakaoti i te (15-4)+3-(12-5*2)+(5+16div4)-5+(10-2^2)

$$( 15 - 4 ) + 3 - ( 12 - 5 \cdot 2 ) + ( 5 + 16 \div 4 ) - 5 + ( 10 - 2 ^ { 2 } )$$

Aromātai

$$22$$

Ngā Upane Otinga

Tangohia te 4 i te 15, ka 11.

$$11+3-\left(12-5\times 2\right)+5+\frac{16}{4}-5+10-2^{2}$$

Tāpirihia te 11 ki te 3, ka 14.

$$14-\left(12-5\times 2\right)+5+\frac{16}{4}-5+10-2^{2}$$

Whakareatia te 5 ki te 2, ka 10.

$$14-\left(12-10\right)+5+\frac{16}{4}-5+10-2^{2}$$

Tangohia te 10 i te 12, ka 2.

$$14-2+5+\frac{16}{4}-5+10-2^{2}$$

Tangohia te 2 i te 14, ka 12.

$$12+5+\frac{16}{4}-5+10-2^{2}$$

Tāpirihia te 12 ki te 5, ka 17.

$$17+\frac{16}{4}-5+10-2^{2}$$

Whakawehea te 16 ki te 4, kia riro ko 4.

$$17+4-5+10-2^{2}$$

Tāpirihia te 17 ki te 4, ka 21.

$$21-5+10-2^{2}$$

Tangohia te 5 i te 21, ka 16.

$$16+10-2^{2}$$

Tātaihia te 2 mā te pū o 2, kia riro ko 4.

$$16+10-4$$

Tangohia te 4 i te 10, ka 6.

$$16+6$$

Tāpirihia te 16 ki te 6, ka 22.

$$22$$

Tauwehe

$$2\times 11$$