Count by tens - start at 10, at 30, at 110, at 43, at 67, from 54 to 84, and so on. One student enters a two-digit number and the other must add a number that will get as close as possible to 50 . 6. The daily calendar routine provides the students with many opportunities for computation. Twenty-four are here today. Different solutions are acknowledged and praised.
Students regularly have human vs. calculator races .
Given a list of addition and subtraction basic facts, one student uses mental math strategies and another uses a calculator. They quickly come to realize that the human has the advantage. As part of an assessment, students tell how they would solve a particular problem and why. Understand and use relationships among operations and properties of operations. Students make up humorous stories about adding and subtracting zero.