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Doodle 3D Transform
Doodle3D Transform is a free and open-source web app that makes 3D drawing and design easy and fun.
On the one hand, it's super easy to use, with cute icons, so it can be used by primary school students. On the other hand, it has quite a few features …Translated by
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Multilingualism and language disorders
This website is intended as a tool for anyone who works with multilingual children who are suspected of having a language development disorder. The website contains information on more than 75 languages. Differences with Dutch, information about …
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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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Adding rational numbers: Exercises
BookWidgets exercises on adding and subtracting rational numbers in fraction form and as a decimal number.
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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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Problems with percentages: Exercise
Problems with percentages about profit, discount, increase and decrease.
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