Third graders do a lot of their own editing. Third graders learn new words and ideas. Third graders will identify the meaning of new words and build their vocabularies. Mathematics Third graders work with numbers 0 to 9,999. They learn to add, subtract and compare numbers in the hundreds and thousands.
Third graders learn about odd and even .
Third graders learn that even numbers are numbers that can be evenly divided by two. Multiplication and division are introduced in third grade. Third graders learn that multiplication is the same as repeated addition. Third graders are expected to memorize multiplication facts up to 10. They learn that when they divide, they separate a large group into smaller groups of equal size and that when they multiply they are combining smaller groups into one larger group.