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 ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This illustrated pamphlet describes ...

A key part—though surely not the only part—of early-grades math is ensuring students get the basic arithmetic functions down and, beyond that, making sure they’re able to swiftly and automatically ...

Susan Hobart asked this week’s “question-of-the-week": What strategies help math facts stick besides the old “drill the skill” and, if someone is not proficient at addition facts, can learning ...

This is called repeated addition. You add the same number lots of times. This can also be written as a multiplication calculation. There are five equal groups of two. The five represents the number of ...

Microsoft Excel allows users across the globe to perform common and complex calculations, and it helps individuals to complete complicated work or assignments given to them. One of the most important ...

A long-standing puzzle seems to constrain how addition and multiplication relate to each other. A graduate student has gone further than anyone else in establishing the connection. In 1983 the ...