Mathematics
Multiplication & Division
Procedural
10–11 yrs
Long multiplication (age 10+)
长乘法（10岁以上）
Description
Fluently multiply multi-digit whole numbers (up to 4 digits by 2 digits) using the formal written method of long multiplication
Mastery Evidence
- Correctly compute 2,463 × 37 using long multiplication
- Explain each partial product in a long multiplication and why they are added
- Multiply a four-digit number by a two-digit number without procedural errors
Assessment Prompt
Can your child use long multiplication to work out something like '2,347 × 24' — setting it out in two rows, one for the units and one for the tens, then adding the results?
