Engage your students with this crossnumber on finding and using upper and lower bounds. Students solve the interleaved questions and use their answers to complete the crossnumber. Extend the thinking of those who complete the questions by getting them to write a new set of questions - a considerable skill!
Full instructions, ideas for support, and a solution are provided in the resource - what more could you need?
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All of our crossnumber resources in one great value bundle! [Download a free sample resource!](https://www.tes.com/teaching-resource/calculator-skills-crossnumber-11379823) A crossnumber works the same way as a crossword, students solve the interleaved questions and use their answers to complete the crossnumber. These resources work well as starters, main activities and plenaries - they're really versatile. The resources all come with instructions and solutions so there's everything you need included.
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nice little cross number puzzle with a range of question difficulty, includes answer. £2 slightly overpriced
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