The ability to do mental math is an important skill all students must have. The trick is to make sure students get lots and lots of practice using those mental math skills to solve problems. Make that practice fun with these twelve free mental math task cards that includes everything you need for a center or for group work!
FREEBIE: This set of 24 task cards covers Rounding Whole Numbers and is also part of a 30 set entire year bundle for 3rd graders! Great focused practice for your students and a huge time saver for teachers! (TpT resource)