Puzzle
NumberPuzzle
Code breaker:Adding and subtracting negatives
Thirteen calculations with negative numbers, from 3 − 8 up to subtracting a negative. The Code Box holds both 5 and −5, so a sign slip unlocks the wrong letter. Two per A4.
A free key stage 3 and GCSE number puzzle with answers, spec code N2. It goes with the lesson on negative numbers: adding and subtracting.
Lesson
Negative numbers:Adding and subtracting
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