break down (partition) a number using your understanding of place value recall times-tables up to 9 x 9 multiply by multiples of powers of ten Multiply each of these numbers by the 1-digit number and ...

Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

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 ...