Column multiplication: 3 digits by 1 digit, with carrying: introduced in the Year 4 curriculum as "Multiply two-digit and three-digit numbers by a one-digit number using formal written layout"
When doing column multiplication, if a result is more than 10,
write in the ones digit and carry the tens digit.
Press SHOW/HIDE if you need to do jottings.
6 multiplied by 2 is 12, so we record the 2 in the Ones column
and carry the Tens value.
When 6 is multiplied by 2 in the Tens column we get 12, so we record
the 2 in the Tens column and carry the 1 into the Hundreds column.
Sara says, 'I have 2 carries in my workings here'. Is she correct?
4 multiplied by 3 is 12. We write 2 in the Ones column and carry 1 into the Tens.
4 multiplied by 4 is 16. Add the 1 we carried to make 17. We write 7 in the Tens column and carry 1 into the Hundreds.
4 multiplied by 1 is 4. Add the 1 we carried to make 5. There are only two carries!