Price: 150 points or $1.5 USD
Subjects: math,mathElementary,countingAndCardinality,operationsAndAlgebraicThinking,baseTen,placeValue,additionAndSubtraction
Grades: 1,2,3,4
Description: Here are 20 Boom Cards for students to practice adding and subtracting by nines and groups of ten. The first section will give boxes above, but are not required to be used. The second section will ask them to add or subtract fromleft to right. They can group numbers together to make the problems easier!