Whakaoti i te [(-3+7)*2-5*(-4+8)]*(4-9)=

$$[ ( - 3 + 7 ) \cdot 2 - 5 \cdot ( - 4 + 8 ) ] \cdot ( 4 - 9 ) =$$

Aromātai

$$60$$

Ngā Upane Otinga

Tāpirihia te -3 ki te 7, ka 4.

$$\left(4\times 2-5\left(-4+8\right)\right)\left(4-9\right)$$

Whakareatia te 4 ki te 2, ka 8.

$$\left(8-5\left(-4+8\right)\right)\left(4-9\right)$$

Tāpirihia te -4 ki te 8, ka 4.

$$\left(8-5\times 4\right)\left(4-9\right)$$

Whakareatia te 5 ki te 4, ka 20.

$$\left(8-20\right)\left(4-9\right)$$

Tangohia te 20 i te 8, ka -12.

$$-12\left(4-9\right)$$

Tangohia te 9 i te 4, ka -5.

$$-12\left(-5\right)$$

Whakareatia te -12 ki te -5, ka 60.

$$60$$

Tauwehe

$$2^{2}\times 3\times 5$$