Better Lesson
Better Lesson: Go Fishing for a Ten
Second graders use a familiar card game to help them build their math fact fluency for facts where the sum is 10.
Alabama Learning Exchange
Alex: It's Automatic! More or Less With Ten
In this lesson, young scholars will observe patterns with the use of a Hundreds Chart, web-based practice (IXL Hundreds Chart Practice), and by playing a game (10 More or 10 Less). The patterns noticed through the various activities will...
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Number Pairs, Addition and Subtraction to 10
A guide to support parents as they work with their students in number pairs, addition and subtraction to 10.
Better Lesson
Better Lesson: Applying the Basics!
Using base-ten materials and place-value skills, 2nd graders gain a better understanding of how to add and subtract numbers.
Khan Academy
Khan Academy: Subtract Within 10
Practice subtracting by "taking apart" (with numbers less than 10). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Add Within 10
Practice adding by "putting together" (with numbers less than 10). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Teaching Treasures Publications
Teaching Treasures: Year One Timed Mental Math (Page 3)
Try to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given. A suitable tool for use as a quick assessment.
University of Saskatchewan (Canada)
Emr: Exercises in Math Readiness
Practice your mental math skills with this site, where practice problems in addition, subtraction, multiplication, and division abound. Introductory, intermediate, and advanced levels are available. Just type in your answer and you'll...
Teaching Treasures Publications
Teaching Treasures: Year One Timed Mental Math (Page 2)
Learners are challenged to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given.
Khan Academy
Khan Academy: Put Together
In this exercise, students practice adding within 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Addition and Subtraction Word Problems 1
Practice adding and subtracting to solve word problems. Numbers used are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Doina Popovici
Math Play: Decimals Jeopardy Game
This Jeopardy game challenges students to add, subtract, and multiply decimals. Play with up to 10 teams.
Illustrative Mathematics
Illustrative Mathematics: The Value of Education
The purpose of this task is for learners to add, subtract, multiply, and divide decimal numbers in a real-world context. The weekly income earned by each person in the task is the median weekly income for their education level, but they...
Mangahigh
Mangahigh: Number: Number Partners Up to 20
Students explore the concept of number partners by working through an online tutorial and then attempting a ten question quiz that increases in difficulty as questions are answered correctly.
Better Lesson
Better Lesson: Put It Together and Take It Apart
Second graders increase their understanding of place value by manipulating larger numbers.
Khan Academy
Khan Academy: Making 5
Practice adding numbers to make 5. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: Hitting the Target Number
The purpose of this task is to help students develop flexible strategies for adding and subtracting within 20. Students will pick 5 number cards from pre-made cards labeled 1-10. Then, another student will pick a "target number" between...
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Sums and Differences to 20
A guide to support parents as they work with their students in sums and differences to 20.
Khan Academy
Khan Academy: Relate Addition and Subtraction
Practice seeing how addition and subtraction are related. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.