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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.
 Q 1: In 156, what is the base?156 Q 2: Write (-2)x(-2)x(-2)x(-2) as a power.4(-2)(-2)4 Q 3: In 1015, what is the index?15510 Q 4: Write 6x6x6x6x6 as a power.5665 Q 5: In (-2)15, what is the base?-215 Q 6: In (-7)12, what is the index?12-712-7 Q 7: In 1715, what is the base?1517 Q 8: In 156, what is the index?62215 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!