Solve 6.5-91.5-0.5+4+0.7-0.2+0.3+5+10+10=

$$6.5-91.5-0.5+4+0.7-0.2+0.3+5+10+10=$$

Evaluate

$$-55.7$$

Solution Steps

Subtract 91.5 from 6.5 to get -85.

$$-85-0.5+4+0.7-0.2+0.3+5+10+10$$

Subtract 0.5 from -85 to get -85.5.

$$-85.5+4+0.7-0.2+0.3+5+10+10$$

Add -85.5 and 4 to get -81.5.

$$-81.5+0.7-0.2+0.3+5+10+10$$

Add -81.5 and 0.7 to get -80.8.

$$-80.8-0.2+0.3+5+10+10$$

Subtract 0.2 from -80.8 to get -81.

$$-81+0.3+5+10+10$$

Add -81 and 0.3 to get -80.7.

$$-80.7+5+10+10$$

Add -80.7 and 5 to get -75.7.

$$-75.7+10+10$$

Add -75.7 and 10 to get -65.7.

$$-65.7+10$$

Add -65.7 and 10 to get -55.7.

$$-55.7$$

Factor

$$-55.7$$