Solve big numbers step by step, one column at a time
Start small, then level up!
A written method for multiplying bigger numbers. You multiply by one digit at a time, write each result on its own row, then add the rows together.
Ignore the decimal point and multiply as if both were whole numbers. Then put the point back, with as many digits after it in the answer as there were in the question.
The times tables up to 9 × 9 and column addition with carrying. Long multiplication uses both at every step.
Five: 1-digit × 1-digit with a picture, 2-digit × 1-digit, 2-digit × 2-digit, 3-digit × 2-digit, and a decimal × 1-digit.