These two math activities are perfect for 100th day of school math practice or centers! Perfect for 2nd or 3rd graders studying addition and subtraction with regrouping.
-3 Addend Activity - Students match 3 cards with 3 different addends to try and make a sum of 100. Students will build 4 problems.
-1000 chart addition/subtraction - Students use a 1000 chart to add and subtract 3 digit numbers, and "claim" their numbers on a chart!