sass arithmetic functions

sass-arithmetic-functions.css

.testing {
  width: 20px;
}

.arithmetic-functions {
  division: 1;
  multiply: 100;
  decrease: 0;
  add: 20;
}

sass-arithmetic-functions.scss

// ----
// Sass (v3.4.21)
// Compass (v1.0.3)
// ----

$test: 10px;

@function calc-width($value1, $value2) {
  @return $value1 + $value2;
}

.testing {
  width: calc-width($test, $test);
}

$number10: 10;


.arithmetic-functions  {
  division: $number10/$number10;
  multiply: $number10*$number10;
  decrease: $number10 - $number10;
  add: $number10+$number10;
}