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### MEAP Preparation - Grade 7 Mathematics1.140 Powers of Integers I

 If 'a' is an integer, the product of a x a x a x a x......x a for n times is denoted by an. In an, a is called the base, n is called the index, and an itself is called the nth power of a. Example: 2 x 2 x 2 x 2 is written as 24, where 2 is the base and 4 is the index. Example: Write (-2) x (-2) x (-2) as a power. (-2)3 More Examples: 3 x 3 x 3 x 3 x 3 x 3 = 36 10 x 10 x 10 = 103 (-7) x (-7) x (-7) = (-7)3 (-12) x (-12) x (-12) x (-12) x (-12) = (-12)5 Directions: Choose the correct answer. Also write at least 10 examples of your own.

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### MEAP Preparation - Grade 7 Mathematics1.140 Powers of Integers I

 Q 1: In 156, what is the index?61522 Q 2: In (-7)12, what is the index?12-712-7 Q 3: In 1015, what is the index?10155 Q 4: In 156, what is the base?615 Q 5: In 1715, what is the base?1517 Q 6: In (-2)15, what is the base?15-2 Q 7: Write 6x6x6x6x6 as a power.5665 Q 8: Write (-2)x(-2)x(-2)x(-2) as a power.(-2)44(-2) Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!