50 Mental Maths Tests for 2nd Class Maths Challenge is a series of mental maths tests for 1st to 6th class. The tests will encourage the use of higher order thinking and problem solving skills. The tests take in to account the age levels and abilities of the children. These books have been designed to improve mental arithmetic skills but at the same time reinforce the concepts of number, space, time and measurement. The language has been simplified to take due cognisance of the children's reading level.