Decompose larger numbers into their components using expanded notation (e.g., 37 × 4 becomes (30 × 4) + (7 × 4)) to simplify the calculation.
Introduce this "shortcut" only after students have mastered conceptual methods like the area model, as it requires a strong grasp of regrouping and place value. Mastering Multi-Digit Division mnogoznachnye primery delenie i umnozhenie dlja 4 klassa
A great blog post on multi-digit multiplication and division for 4th graders should bridge the gap between simple facts and complex long-form operations. By focusing on visual strategies and real-world application, you can make these intimidating topics much more approachable. By focusing on visual strategies and real-world application,
Reinforce the connection that division is simply the opposite of multiplication. For example, use multiplication to check a quotient by multiplying it by the divisor and adding the remainder. The Complete Guide to Teaching Multiplication and Division The Complete Guide to Teaching Multiplication and Division
In 4th grade, students move beyond memorising tables to multiplying whole numbers up to four digits by a one-digit number, and two two-digit numbers.