This set of 36 task cards can be used with 4th, 5th, or 6th grade. Skills include addition and subtraction with regrouping of whole numbers including money notation, multiplication and division of whole numbers, and addition and subtraction of fractions with like denominators. The last cards include multiplication and division of decimals. They are aligned to common core. The last cards may be a stretch for 4th grade may be removed if used in 4th grade. The cards may be used in a center or as part of a game like "Scoot". If you have a problem with this set please let me know so I can address it directly.