Use a double 10-frame to play a game and represent adding three single-digit numbers. Warm up with a Mystery Math Mistake to decompose teen numbers. Use a double 10-frame to represent adding three ...

Join Mrs. Gray for a subtraction word problem with Porfessor Barble! Next we are going to take word problems to a new level with putting together/taking apart with both addends unknown. I wonder if ...

As surely as 2+2=4, it also equals a beginning step on students’ mathematics journey. Single-digit addition facts like these are so heavily used in mathematics that it’s critical that students ...