# Add and Subtract within 20 Online Games

## Interactive Adding – Matching Pairs for 20, 50, & 100 (1st Grade)

Dream Box – Matching Number Pairs for Twenty. Students practice computation strategies and identify number patterns and relationships to make twenty in a variety of ways. Lesson Dream Box – Matching Number Pairs for Fifty. Students practice computation strategies and identify number patterns and relationships to make fifty in a variety of ways. Lesson Dream Box – Matching…

More...## Interactive Number Equivalency (2nd & 3rd Grade)

Second Grade Dream Box – Build Expressions Equal to Twenty. Using expressions that have one to three addends, this tool engages students in understanding various number pairs that equal up to twenty. Lesson Dream Box – Build Expressions Equal to One Hundred. Using expressions that have one to three addends, this tool engages students in understanding equivalence of…

More...## Problem Solving – Thinking Blocks Interactive Tutorials and Problems Level 2

Thinking Blocks Interactive Tutorials – Model and solve word problems with addition and subtraction. Online interactive tutorial. Second Grade and Third Grade. Online Word Problems with Addition and Subtraction within 20 – Challenge Word Problem Set 1 Word Problem Set 2 Word Problem Set 3 Word Problem Set 4 Word Problem Set 5 Word Problem…

More...## Problem Solving – Thinking Blocks Interactive Tutorials and Problems

Thinking Blocks Interactive Tutorials – Model and solve word problems with addition and subtraction. Online interactive tutorial. First and Second Grade. How to use Thinking Blocks Tutorial Online Addition Word Problems and Missing Addend Word Problem Set 1 Word Problem Set 2 Word Problem Set 3 Word Problem Set 4 Word Problem Set 5 Word…

More...## Making 8, 9, and 10 Lesson, Game, Worksheet- Kindergarten

Students practice computation strategies and identify number patterns and relationships to make eight, nine, and ten in a variety of ways. Matching Number Pairs for Eight Matching Number Pairs for Nine Matching Number Pairs for Ten Sample Lesson Making 7, 8, 9, 10 Worksheet Sums up to Five Sums up to Ten Worksheets Operations &…

More...## Smart Board Games: Grades K-3

Smart Board Games – A collection of interactive smart board games for educators. Students will enjoy participating in these collaborative, fun and engaging experiences, while exploring curriculum from trusted programs such as Curious George, Super Why and Arthur. Like our programs, all of our games are age-appropriate and vetted by educators. Language Arts, Math and…

More...## Online Counting Games

Online Counting Games – Three free online counting games. Great for preschool, kindergarten or any kid who is ready to learn to count. Know number names and the count sequence. CCSS.Math.Content.K.CC.A.1 Count to 100 by ones and by tens. CCSS.Math.Content.K.CC.A.2 Count forward beginning from a given number within the known sequence (instead of having to…

More...## Online Math Operation Games: K-4

Smarty Math Games – Fourteen different free online math games that will give students practice on basic single-digit and double-digit math problems. Addition, Subtraction, Multiplication, and Division. Understand addition, and understand subtraction. CCSS.Math.Content.K.OA.A.5 Fluently add and subtract within 5. Add and subtract within 20. CCSS.Math.Content.1.OA.C.5 Relate counting to addition and subtraction (e.g., by counting on…

More...## Basic Operations: Addition, Subtraction, Multiplication, and Division Online Games

Sheppard Software – Many different free Addition, Subtraction, Multiplication, and Division Online Games. It has different types of games (shooting, pac man & more), as well as different levels. Includes missing numbers and decomposing numbers. CCSS.Math.Content.1.OA.B.3 Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known,…

More...## Math and Reading Online Games

Sum Dog – Free educational games that motivate your students to practice math and Reading – while you have full control over what they learn. Students play educational games against others worldwide, while teachers control what they learn. It uses a learning engine which understands each student, tailoring questions to their individual needs. Set up…

More...## Soft Schools Online Math Games

Soft Schools – Free online math games: Operations, Place Value, Number Sense, Estimation, Fractions, Decimals and Geometry. Covers several Common Core Standards, but more importantly it builds the foundation for all the CCSS. CCSS.Math.Content.4.OA.B.4 CCSS.Math.Content.1.OA.C.6 CCSS.Math.Content.2.OA.B.2 CCSS.Math.Content.3.OA.C.7 CCSS.Math.Content.3.NBT.A.1 CCSS.Math.Content.4.OA.B.4 CCSS.Math.Content.4.NF.B.3c CCSS.Math.Content.4.NBT.A.3 CCSS.Math.Content.5.NBT.A.3

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