Two-Digit Numbers Flashcards Set for Math Practice - Series "From 1 to 100

Kit consists of: 12 light coloured double-sided cards designed for practice in addition and subtraction of two-digit numbers within the first hundred. The cards have the shape of a gear (a circle with 12 semicircular cutouts located along the entire length of the circle, the distance between the cutouts is equal). The cards are made of coated paper, the diameter of each card is 210 mm, each card has two holes with a diameter of 3 mm. In the centre of each card there are 12 tasks; the answers to the tasks are located next to the card cut-outs. The back of each card provides an opportunity for self-checking. The cards are packed in a square-shaped cardboard folder, with a side length of 220mm and a thickness of 7mm.