FREE Addition Tic-Tac-Toe - This could be used as an opportunity for students to practice addition problem solving strategies learnd through CGI such as adding all the tens and then the ones, making tens, counting on, etc.
Two page worksheet that allows students to practice ten more, ten less, one more, and one less. Front of the worksheet provides a 99 chart whereas the back allows students to practice by finding the patterns in place value.
My students love these number puzzles. They are a great way to practice different strategies for adding and subtracting two-digit and three-digit numbers. They help students play with decomposing numbers to build addition and subtraction math strategies