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Square root of a decimal number: Exercises
BookWidgets exercises on calculating the square root of a decimal number.
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Power of a decimal number: Exercises
BookWidgets exercises on calculating powers of decimal numbers.
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Power of a fraction: Exercises
BookWidgets exercises on calculating powers of fractions.
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Corners in a quadrilateral
Sum of the four angles in a quadrilateral is 360 degrees. Calculate the size of an angle, based on three given angles.
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Working out squares with remarkable products
Calculate the following squares using the rule of remarkable products.
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Proportions
An exercise on solving proportions: a/b = c/d means ad = bc.
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Distributivity in multiplication
Working out multiplications using distributivity: e.g. 31x11 = (30+1)x(10+1) = 300 + 30 + 10 + 1 = 341.
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Square roots of natural numbers
This exercise is about square roots of natural numbers, which have a natural number as a solution.
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Elections: Quiz
View the Karrewiet report on the elections . You then solve multiple choice questions about the broadcast.
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Problems with percentages: Exercise
Problems with percentages about profit, discount, increase and decrease.
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Cube: Unfolding
Development or unfolding of a cube based on various images.
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Polygon: Angles and sides
Find the adjacent and included angles or sides in a polygon.
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