1,447 prompts matching "Estimating an answer by rounding each quantity first"
Practice set: Finding a distance from a given angle of depression
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Word problem: The area of a triangle from base and height
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Worked example: Finding the area and perimeter
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Practice set: The area of a minor segment and of a major segment
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Practice set: Calculating the cube and cube root of a number
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Word problem: Using a letter to stand for an unknown number
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Worked example: Substituting numbers into an algebraic
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Word problem: Factorising the numerator and denominator of a rational expression
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Word problem: Drawing the net of a cube and of a cuboid
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Practice set: Converting between grams, kilograms and tonnes
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Word problem: Telling an acute angle from an obtuse one
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Practice set: Calculating the mean of a set of individual data
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Word problem: The range of a set that contains one extreme value
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Worked example: Finding the interquartile range of a set
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Practice set: Calculating the sector angles for a pie chart
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Worked example: Constructing an algebraic expression
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Practice set: Solving simultaneous linear equations in two variables
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Spot my mistake: Solving simultaneous equations where one unknown is already the subject
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Word problem: Changing the subject of a formula involving two letters
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Worked example: Solving a quadratic equation by factorisation
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