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CHAPTER AT A GLANCE
Algebra Play
•Unit: Algebra
•Board weightage: Forming and solving linear equations, proving tricks and divisibility with letter-numbers, number pyramids and calendar grids give regular 2-mark, 3-mark and 4-mark questions (please check the latest sample paper)
•Key ideas from the textbook: 'Think of a Number' tricks, date trick, number pyramids, calendar grids, digits and products, reversing digits, divisibility by 9, 11, 37, 1001, word problems with one unknown
•Most scoring part: writing a step-by-step algebraic proof of a trick and solving a word problem by forming a linear equation
•Time to revise: about 60 minutes
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