Solve 100-4-7-5-3-5-5-4-3-5-3-2-21

$$100-4-7-5-3-5-5-4-3-5-3-2-21$$

Evaluate

$$33$$

Solution Steps

Subtract 4 from 100 to get 96.

$$96-7-5-3-5-5-4-3-5-3-2-21$$

Subtract 7 from 96 to get 89.

$$89-5-3-5-5-4-3-5-3-2-21$$

Subtract 5 from 89 to get 84.

$$84-3-5-5-4-3-5-3-2-21$$

Subtract 3 from 84 to get 81.

$$81-5-5-4-3-5-3-2-21$$

Subtract 5 from 81 to get 76.

$$76-5-4-3-5-3-2-21$$

Subtract 5 from 76 to get 71.

$$71-4-3-5-3-2-21$$

Subtract 4 from 71 to get 67.

$$67-3-5-3-2-21$$

Subtract 3 from 67 to get 64.

$$64-5-3-2-21$$

Subtract 5 from 64 to get 59.

$$59-3-2-21$$

Subtract 3 from 59 to get 56.

$$56-2-21$$

Subtract 2 from 56 to get 54.

$$54-21$$

Subtract 21 from 54 to get 33.

$$33$$

Factor

$$3\times 11$$