Adding Subtracting and Multiplying Numbers

When multiplying mixed numbers, what is the first thing you need to do?

• Find the GCF

• Find the LCM

• Change the numbers to improper fractions.

• Simplify the fractions

Solve 2 1/6 * 2/3 

• 1 4/9

• 26/18

• 15/9

When multiplying fractions what do you do?

• Find the LCD

• Find the GCF

• Multiply the numerators then the denominators.

• Multiply the numerators, keep the same denominator

solve Katoni bought 2 1/2 dozen donuts to bring to the office.  Since there are 12 donuts in a dozen, how many donuts did Katoni buy?

• 12 donuts

• 24 donuts

• no donuts

• 30 donuts

Choose the correct answer for the operation pictured.

• 7-13i

• 7-i

• 1-13i

• 1-i

(3 + 8i)(-2 - i)

• 2-19i

• 23-i

• 34+5i

• 23-i

Simplify: 
(7 + 2i)(9 - 6i)

• 75-24i

• 63 - 24i  - 12i²

• 51 - 24i

• 58 + 60i

Find the sum.
(5-2i) + (-7+8i)

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

(4 - 2i) - (3 + 6i)

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

(-3-i)(6-i)

• -21-7i

• -19-3i

• -15-5i

• -17-9i