Students extend their use and understanding of whole numbers to the addition and subtraction of simple decimals. Students solve problems involving addition, subtraction, multiplication, and division of whole numbers and understand the relationships among the operation. Students know how to factor small whole numbers. Students use and interpret variables, mathematical symbols, and properties to write and simplify expressions and sentences. Students know how to manipulate equations.
Students understand perimeter and area.
Students use two-dimensional coordinate grids to represent points and graph lines and simple figures. Students demonstrate an understanding of plane and solid geometric objects and use this knowledge to show relationships and solve problems. Students organize, represent, and interpret numerical and categorical data and clearly communicate their finding. Students make predictions for simple probability situation. Students make decisions about how to approach problems.