Datrys 15-3*((100-4*(3*2-5*5))+9)-23*6+6

$$15-3 \times ((100-4 \times (3 \times 2-5 \times 5))+9)-23 \times 6+6$$

Enrhifo

$$-672$$

Camau Ateb

Lluosi 3 a 2 i gael 6.

$$15-3\left(100-4\left(6-5\times 5\right)+9\right)-23\times 6+6$$

Lluosi 5 a 5 i gael 25.

$$15-3\left(100-4\left(6-25\right)+9\right)-23\times 6+6$$

Tynnu 25 o 6 i gael -19.

$$15-3\left(100-4\left(-19\right)+9\right)-23\times 6+6$$

Lluosi 4 a -19 i gael -76.

$$15-3\left(100-\left(-76\right)+9\right)-23\times 6+6$$

Gwrthwyneb -76 yw 76.

$$15-3\left(100+76+9\right)-23\times 6+6$$

Adio 100 a 76 i gael 176.

$$15-3\left(176+9\right)-23\times 6+6$$

Adio 176 a 9 i gael 185.

$$15-3\times 185-23\times 6+6$$

Lluosi 3 a 185 i gael 555.

$$15-555-23\times 6+6$$

Tynnu 555 o 15 i gael -540.

$$-540-23\times 6+6$$

Lluosi 23 a 6 i gael 138.

$$-540-138+6$$

Tynnu 138 o -540 i gael -678.

$$-678+6$$

Adio -678 a 6 i gael -672.

$$-672$$

Ffactor

$$-672$$