This three puzzle set of Tarsia maths jigsaws requires your students to round the given numbers to the nearest integer, ten or hundred in order to solve the jigsaw puzzle. Each puzzle has 30 numbers to round across 24 triangular pieces which fit together into one large hexagon. Puzzle 1: Rounding to the nearest whole number Puzzle 2: Rounding to the nearest 10 Puzzle 3: Rounding to the nearest 100 Excellent as a maths lesson starter or as a group task for students to discuss their understanding