The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

In math, students learn the concept of rates and ratios and use these tools to solve word problems. Students work on dividing multi-digit whole numbers and adding, subtracting, multiplying, and ...

In fourth grade, students focus most on using all four operations - addition, subtraction, multiplication, and division - to solve multi-step word problems involving multi-digit numbers. Fourth-grade ...