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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 5 - Mathematics
1.21 Exponents

Exponents are a shorthand way to show how many times a number, called the base, is multiplied to itself. A number with an exponent is said to be "raised to the power" of that exponent.

Example:
2 x 2 x 2 x 2 = 2 to the power of 4
2 4 = 16
2 is called the Base
4 is called the power, exponent or index
Exponential formWordsMeaning
101ten to the first power10
32three to the second power or three squared3 x 3
23two to the third power or two cubed2 x 2 x 2
54five to the fifth power5 x 5 x 5 x 5 x 5
xnx to the nth powerx.x.x.x.x..........n times

Important points:

  • Any number raised to the zero power (except 0) equals 1.
    Example: 30 = 1

  • Any number raised to the power of one equals itself.
    Example: 41 = 4

  • To find 10 to the power of any number, simply add the same number of zeros after 1.
    Example: 103 = 1000

Directions: Find answers to the following exponent questions. Also write at least ten more examples of your own.
Q 1: 10 4 = _____
1,000
10,000
100

Q 2: 10 3 = _____
10000
100
1,000

Q 3: 10 ? = 1,000
4
3
2

Q 4: 1,000 x _____ = 1,000,000
100
1,000
10

Q 5: 10 ? = 100
3
2
4

Q 6: 10 0 =
1
0
10

Q 7: 10 x 10 x 10 x 10 =
10,000
1,000
100

Q 8: 10 x ____ = 1,000?
100
1000
10

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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