 # Lesson Objectives By the end of this lesson you should be able to:

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Lesson Objectives By the end of this lesson you should be able to:
Multiply powers with the same base. Divide powers with the same base. Free powerpoints at

Multiplying powers of the same number
Copy the text below in to your books and then answer the questions 25 x = 43 x = 62 x = 84 x = 92 x = 2-3 x 2 = 55 x 5 –7 = 3 -2 x = 8 -2 x 8 -3 = When multiplying: Powers of the same base (number) are added. In general: am x an = am+n Give your answer in power form Example: 55 x 56= 511 Base number Power

Multiplying powers of the same number
Answers 25 x = 43 x = 62 x = 84 x = 92 x 9 –2 = 2-3 x = 55 x 5 –7 = 3 -2 x = 8 -2 x 8 -3 = 27 49 63 87 90 = 2 -2 = 5 -2 = 3 -1 = 8 1 = When multiplying: Powers of the same base (number) are added. In general: am x an = am+n Base number Power Follow me card activity

Dividing powers of the same number
Copy the text below in to your books and then answer the questions 25 ÷ = 47 ÷ = 62 ÷ = 84 ÷ = 311 ÷ = 2-3 ÷ 2 = 55 ÷ 5 –7 = 11 -2 ÷ 113 = 7-4 ÷ = When dividing: Powers of the same base (number) are subtracted. In general: am ÷ an = am - n Give your answer in power form Example: 56 ÷ 52= 54 Base number Power

Dividing powers of the same number
Extra Questions Answers 25 ÷ = 47 ÷ = 62 ÷ = 84 ÷ = 311 ÷ = 2-3 ÷ 2 = 55 ÷ 5 –7 = 11 -2 ÷ 113 = 7-4 ÷ = 23 42 61 = 81 = 36 2 -4 512 11 -5 7-1 = Now try these: 2 x 25 21 35 x 3-2 32 5-3 x 54 5-2 42 x 46 4-7 When dividing: Powers of the same base (number) are subtracted. In general: am ÷ an = am - n Base number Power

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