Interactive
Soft Schools

Soft Schools: Find the Missing Number Game

For Students Pre-K - 1st Standards
Students enter the missing number in a consecutive sequence of three integers. Score is kept.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Finding and Completing the Number Patterns

For Students 3rd - 4th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students must identify the pattern in a series of numbers and fill in the missing numbers. Includes video demonstrating a sample problem...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Incorrect Subtraction Sentence Ii

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video shows how to finding the missing number in a two-digit subtraction problem by working backwards. The video is followed by a series of practice questions to...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Truck Stop: Pattern and Function

For Students 3rd - 5th Standards
In Pete's truck stop there are trucks loaded with numbers. Help him find the missing numbers for his customers!
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Finding the Number From the Figure Patterns

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine the division pattern in a series of number to find missing numbers. The video is followed by practice problems to assess student...
Unit Plan
Khan Academy

Khan Academy: Numbers to 100

For Students Pre-K - 1st Standards
Practice finding missing numbers in a list of numbers between 0 and 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Numbers to 120

For Students K - 1st Standards
Practice finding missing numbers in a list of numbers between 0 and 120. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding and Subtracting With Parentheses

For Students 4th - 5th
[Free Registration/Login may be required to access all resource tools.] The resource includes a video tutorial on how to find a missing number in a multi-operational problem by working backwards. The video is followed by practice...
Whiteboard
SMART Technologies

Smart: Colorful Painter Fact Families

For Teachers 1st - 3rd
Find the missing numbers in the fact family number sentences.
Unit Plan
Khan Academy

Khan Academy: Find Missing Divisors and Dividends (1 Digit Division)

For Students 2nd - 4th Standards
Find missing divisors and dividends in 1-digit division problems. Quotients are less than or equal to 10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints....
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Which Is Worth More, a Smile or a Frown?

For Students 3rd - 6th
Solve for the value of the smiles and frowns to find out how much a smile is worth, in this activity. A challenge that focuses on number sense, number combinations, and unknowns. Included are examples of how this skill is applied in real...
Activity
Math Is Fun

Math Is Fun: Common Number Patterns

For Students 3rd - 8th Standards
Developed by a mathematics teacher from the UK, this page identifies and illustrates several common number patterns.
Activity
Oswego City School District

Regents Exam Prep Center: Truth Value of Open Sentences

For Students 3rd - 8th Standards
What happens when there is not enough information to solve a problem? Find out at this test prep site, how missing information or "open sentences" can change the value or truth of a math equation. Practice understanding and applying this...
Handout
Khan Academy

Khan Academy: Ratio Tables

For Students 6th Standards
Explains what ratio tables are. Includes simple examples and a few practice problems.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Equivalent Ratios

For Students 6th - 7th Standards
[Free Registration/Login may be required to access all resource tools.] Learn what ratios are and how to arrive at equivalent ratios. Identify and write equivalent ratios.