## Find a Pattern I

### Find Missing Numbers: Learn

How to find a missing number in a sequence:

- Determine if the order of numbers is ascending (getting larger in value) or descending (becoming smaller in value).
- Find the difference between numbers that are next to each other.
- Use the difference between numbers to find the missing number.

Example: Find the missing number: 15, 13, ?, 9

- The order of numbers is descending (going down).
- The difference between numbers is 15 - 13 = 2
- Since the order is descending subtract 2 from 13. The missing number may be 11.
- The missing number is 11 since it is 2 more than the last number 9.

### Find Pattern: Practice

#### Note: Look carefully at the sequence's direction.

00:00

Press the Start Button To Begin

You have
0
correct and
0
incorrect.

This is
0
percent correct.

### Play

Game Name | Description | Best Score |
---|---|---|

How many correct answers can you get in 60 seconds? | 0 | |

Extra time is awarded for each correct answer.
Play longer by getting more correct. |
0 | |

How fast can you get 20 more correct answers than wrong answers? | 999 |

### Explore

#### Math Lessons by Grade

#### Math Topics

- Addition
- Algebra
- Comparing
- Counting
- Decimals
- Division
- Equations
- Estimation and Mental Math
- Exponents
- Fractions
- Geometry
- Measurement
- Money
- Multiplication
- Naming Numbers
- Patterns
- Percents and Ratios
- Place Value
- Properties
- Statistics
- Subtraction