A unit of work looking at the formal written method for multiplication (2D number x 1D number) and using a place value grid to multiply and divide by 10, 100 and 1000.Objectives covered: LI: To multiply by 10, 100 and 1000. LI: To divide by 10, 100 and 1000. LI: To use the formal written method to multiply a 1-digit number with a 3-digit number. LI: To use my knowledge of other multiples to answer questions. LI: To use the formal written method to multiply a 2-digit number with a 3-digit number.