Format: 42.5x30.5 cm. It is important for primary school teachers to teach the child to perform exercises and tasks independently. A reliable assistant for this is the Hint to the student. Mathematics 1-4 grades. It contains the entire course of mathematics in elementary school: the Pythagorean table, units of measurement, formulas, geometric figures, degrees and classes of numbers, order of actions in expressions, names of components of actions, problems (decrease/increase), special cases of multiplication/division, fractions, signs , divisibility of numbers, solving equations, half, third, quarter, comparison signs, numbers.