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Cambridge Primary Mathematics 2018 (0845)
Problem solving
Using understanding and strategies in solving problems
Explain a choice of calculation strategy and show how the answer was worked out.
Explore and solve number problems and puzzles, e.g. logic problems.
Describe and continue patterns which count on or back in steps of 2, 3, 4, 5, 10, or 100.
Explain reasons for a choice of strategy when multiplying or dividing.
Choose strategies to find answers to addition or subtraction problems; explain and show working.
Deduce new information from existing information to solve problems.
Use logical reasoning to explore and solve number problems and mathematical puzzles.
Identify relationships between numbers and make generalised statements using words, then symbols and letters, e.g. the second number is twice the first number plus 5 (n, 2n + 5); all the numbers are multiples of 3 minus 1 (3n – 1); the sum of angles in a triangle is 180°.
Make sense of and solve word problems, single and multi-step (all four operations), and represent them, e.g. with diagrams or on a number line; use brackets to show the series of calculations necessary.
Solve simple word problems involving ratio and direct proportion.
Solve simple word problems involving percentages, e.g. find discounted prices.
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Using understanding and strategies in solving problems
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