Practice Exercises Practice Task 1 Give the expressions of the following phrases The sum of six and a number 2. Eight more than a number 3. A number plus five 4. A number decreased by nine S. Ten times a number Practice Task 2 Winte an equation to represent each of the following 1. The sum of a number and five is twelve. 2. Twice a number decreased by six is equal to sixteen. 3. If nine is added to the difference of a number and nineteen, the sum is ninety. 4. Migo weighed s kilograms. Express algebraically his weight after he gained 27 kilograms. 5. Aki is g centimeters tall. Pierre's height is 4 less than thrice the height of Aki. How tall is Pierre algebraically?​