Youngsters at Dereham Church Infant and Nursery School in St Withburga Lane dressed up as number-related characters including a calculator, grandfather clock, number blocks, number fairies and money spiders.
Chloe Cole, assistant headteacher, said the number day was a big success.
She said: "At our school, we aim for all of our children to develop a love of number and become confident and resilient mathematicians. We believe it is important to celebrate maths and recognise how it is used in everyday life."
"The day consisted of children completing a number hunt where they were timed to find one hundred numbers hidden in the school grounds and then place them in order, participate in beat the headteacher maths challenges and apply their maths skills to bake treats.
"It was a fantastic and fun day that was thoroughly enjoyed by all."
Nancy from Year Two dressed as a calculator for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
Noah from Year Two dressed as a grandfather clock for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
Tillie and Jonah from Year Two ordering numbers for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
Harvey from Year Two dressed up for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
Logan from Year Two taking part in a number hunt, pictured with assistant headteacher Chloe Cole, dressed as a dice, for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
McKenzie from Year One dressed up for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
Polly from Year One dressed up for Dereham Church Infant and Nursery School's 'number day'. (Image: Supplied by Dereham Church Infant and Nursery School)
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