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Count the fingers
Solve sums by counting the fingers of two hands.
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Divisibility by 2 and 5
Students color the numbers that are divisible by 2 and the numbers that are divisible by 5 in the requested color. If they color the correct boxes, they will see a 3 and a 9.
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Dot sums up to 100
Addition and subtraction up to 100:
- TE + ... (E) = T;
- TE - ... (E) = T.
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Number knowledge up to 100,000
With this online exercise you practice your knowledge of numbers up to 100,000. You give the value of a digit in a number, you add units, tens or hundreds to a specified number and you indicate the largest number.
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Add, subtract, multiply and divide up to 10,000
You practice adding, subtracting, multiplying and dividing up to 10,000.
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Addition and subtraction up to 20
With these worksheets, students practice adding and subtracting up to 20 without bridge.
There are worksheets where addition and subtraction are practiced separately. On the last worksheet, students practice adding and subtracting up to 20 together.
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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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Sine function
Elements of the sine function: amplitude, equilibrium line and period. You receive a job description and get the requested information from it.
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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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