Datrys 5.3*10^11-12*10^11+0.72*10^11=

$$5.3 \cdot 10 ^ { 11 } - 12 \cdot 10 ^ { 11 } + 0.72 \cdot 10 ^ { 11 } =$$

Enrhifo

$$-598000000000$$

Camau Ateb

Cyfrifo 10 i bŵer 11 a chael 100000000000.

$$5.3\times 100000000000-12\times 10^{11}+0.72\times 10^{11}$$

Lluosi 5.3 a 100000000000 i gael 530000000000.

$$530000000000-12\times 10^{11}+0.72\times 10^{11}$$

Cyfrifo 10 i bŵer 11 a chael 100000000000.

$$530000000000-12\times 100000000000+0.72\times 10^{11}$$

Lluosi 12 a 100000000000 i gael 1200000000000.

$$530000000000-1200000000000+0.72\times 10^{11}$$

Tynnu 1200000000000 o 530000000000 i gael -670000000000.

$$-670000000000+0.72\times 10^{11}$$

Cyfrifo 10 i bŵer 11 a chael 100000000000.

$$-670000000000+0.72\times 100000000000$$

Lluosi 0.72 a 100000000000 i gael 72000000000.

$$-670000000000+72000000000$$

Adio -670000000000 a 72000000000 i gael -598000000000.

$$-598000000000$$

Ffactor

$$-598000000000$$