Mathematics
Multiplication & Division
Procedural
9–10 yrs
Long multiplication
长乘法
Description
Multiply a whole number of up to four digits by a one-digit number, and multiply two two-digit numbers, using formal written methods including long multiplication; illustrate with area models
Mastery Evidence
- Calculate 2,347 × 6 using formal written layout
- Calculate 34 × 27 using long multiplication
- Draw an area model for 45 × 23 and connect to the written method
Assessment Prompt
Can your child work out something like '2,346 × 7' or '43 × 28' using the formal column method — setting it out carefully and working through all the steps?
