Circle Collector
Instructions
STEP 1
Click the big Start button to start the game.
Content Skill: Subtraction
Common Core State Standards: CCSS.Math.Content.2.OA.B.2 - Fluently subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
Educator Info
Game Info
Circle Collector challenges students to think strategically while practicing subtraction! Players solve four subtraction problems to unlock the game and compete against the computer.Skills Practiced
Subtract within 20
Fluency with subtraction facts
Commutative property of subtraction
Recommended For
Grade 1, Grade 2, Grade 3, Grade 4Warm-Up
Play "Subtraction Hot Potato"! Toss a small ball back and forth while solving subtraction problems. The person holding the ball must solve the problem before time runs out.Play these games:
Follow-Up
Play "Subtraction Line Jump"! Create a number line with chalk or tape. Say a subtraction problem, and then ask the student to jump to the correct answer on the number line.Play these games:
