IXL | Powers of ten | 7th grade math

Evaluate.

10³ =

ref_doc_title.

Learn with an example

question

Find the missing exponent.

1,000

key idea

An exponent tells you how many times its base is used as a factor.

When 10 is raised to a whole number exponent, its value has a leftmost digit of 1 and all other digits are 0. The exponent tells you how many 0s come after the 1.

Exponent	Power of 10	Value	Number of 0s
1	10 1 = 10	10	1
2	10 2 = 10 10	100	2
3	10 3 = 10 10 10	1,000	3
4	10 4 = 10 10 10 10	10,000	4

solution

To find the missing exponent, look at the right side of the equation and count the number of 0s after 1.

1,000

There are 3 of them.

So, the missing exponent is 3.

1,000

Looking for more? Try these:

Lesson: Powers of 10

$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

Questions
answeredQuestions

Time
elapsedTime

hr	min	sec
00	00	04

SmartScore
out of 100
IXL's SmartScore is a dynamic measure of progress towards mastery, rather than a percentage grade. It tracks your skill level as you tackle progressively more difficult questions. Consistently answer questions correctly to reach excellence (90), or conquer the Challenge Zone to achieve mastery (100)! Learn more

Teacher tools

Work it out

Not feeling ready yet? These can help:

J.1Understanding exponents

Lesson: Powers of 10

Excellent! You got that right!

Jumping to level 1 of 1

Excellent!