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.
This visual approach breaks numbers into place values (e.g., 624 becomes 600, 20, and 4) and organises them in a grid. Each section's "partial product" is calculated and then summed for the final result.
Decompose larger numbers into their components using expanded notation (e.g., 37 × 4 becomes (30 × 4) + (7 × 4)) to simplify the calculation. mnogoznachnye primery delenie i umnozhenie dlja 4 klassa
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
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 In 4th grade, students move beyond memorising tables
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.
A "chunking" method where students subtract easy-to-calculate groups from the total (e.g., subtracting 100s or 10s at a time) until they reach the remainder. For example, use multiplication to check a quotient
Teach the classic mnemonic "Does McDonald's Sell Burgers?" (Divide, Multiply, Subtract, Bring down) to help kids remember the sequence.