Pupils at Pinchbeck East Primary School enjoyed some Maths Mania instead of normal lessons.
For two days they were joined by the Happy Puzzle Co for fun maths problem solving.
Pictured are (from left) Tia Almond, Teagan Moore, Eva Samulivechite, Matthew Peach, George Paul and Alfie Tointon.
Photo: SG071112-120NG