A subtraction worksheet themed around missing cookies. Revised for better spacing and higher contrast in work area labels.

A print-and-play game board for practicing subtraction. Revised to fit all elements on one page with a larger Baker's Log (10 rows) and improved card sizing.

Interactive instructional slides for introducing basic subtraction. Features engaging visuals of disappearing cookies to help students visualize the concept of 'taking away' and writing equations.

A comprehensive teacher's guide for 'The Great Cookie Vanish' lesson, including materials, pacing, discussion prompts, and step-by-step instructional flow. Revised for better page flow and text consistency.

An answer key for the 'Number Flip' activity sheet, providing correct models for the 12 vs 21 comparison and examples of other digit-flip pairs for teacher reference.

An accountability and recording sheet for students to use while rotating through the math centers. Includes sections for recording game equations, a base-ten drawing workspace, and a "Lightning Round" assessment.

A set of matching cards designed for a "Snap" style game where students match numerical equations involving multiples of 10 with their corresponding base-ten block visual representations.

A student activity sheet that facilitates hands-on learning with base ten blocks. It includes space for drawing models of 12 and 21, comparing them, and practicing with other digit-flip combinations.

A set of four unique bingo boards and teacher calling cards featuring addition and subtraction equations of multiples of 10 within 100. Designed for small group math center play.

An engaging slide deck that uses a construction theme and base ten block visuals to explain the difference between numbers with reversed digits like 12 and 21. It emphasizes the importance of place value in determining quantity.

A vibrant, neon-themed board game where students race to the peak of "Multiples Mountain" by solving addition and subtraction problems involving multiples of 10. Includes special "Jump" and "Slide" squares for extra engagement.

A detailed teacher's guide for managing the Voltage Velocity math centers, including setup instructions, differentiation strategies, and assessment tips for teaching addition and subtraction of multiples of 10.