This resource is aimed at pupils in middle classes or SEN pupils. It is based on reinforcing the concept of place value of 100s, 10s, 1s. The pack contains 16 cards – on the left hand side of each card is a three digit number, with one digit underlined and highlighted in red. The pupil has to decide whether the underlined digit is a hundred, a ten or a unit and what value it has. The pupil must then place a clothes peg on the appropriate number on the right hand side of the card.