Price: 150 points or $1.5 USD
Subjects: math,mathElementary,operationsAndAlgebraicThinking,additionAndSubtraction,counting,cardinality
Grades: 13,1,2
Description: Missing number addition and subtraction within 12. Twelve addition cards, 12 subtraction cards. Solve for the missing number, click the flower with the correct answer. Number line on each card to help with counting up and back.