Whakaoti i te (2+3+4)-(5+6+7-13)+(-3+7-4-8)

$$(2+3+4)-(5+6+7-13)+(-3+7-4-8)$$

Aromātai

$$-4$$

Ngā Upane Otinga

Tāpirihia te 2 ki te 3, ka 5.

$$5+4-\left(5+6+7-13\right)-3+7-4-8$$

Tāpirihia te 5 ki te 4, ka 9.

$$9-\left(5+6+7-13\right)-3+7-4-8$$

Tāpirihia te 5 ki te 6, ka 11.

$$9-\left(11+7-13\right)-3+7-4-8$$

Tāpirihia te 11 ki te 7, ka 18.

$$9-\left(18-13\right)-3+7-4-8$$

Tangohia te 13 i te 18, ka 5.

$$9-5-3+7-4-8$$

Tangohia te 5 i te 9, ka 4.

$$4-3+7-4-8$$

Tangohia te 3 i te 4, ka 1.

$$1+7-4-8$$

Tāpirihia te 1 ki te 7, ka 8.

$$8-4-8$$

Tangohia te 4 i te 8, ka 4.

$$4-8$$

Tangohia te 8 i te 4, ka -4.

$$-4$$

Tauwehe

$$-4$$