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Natural numbers
- Sets 10
- Natural numbers 14
- The decimal system 16
- The binary numeral system 21
- Roman numerals 24
- The number line 26
- Comparing numbers 28
- Rounding numbers 31
- Adding natural numbers 34
- Subtracting natural numbers 37
- Multiplying natural numbers 41
- Multiplication by 10; 100 and 1,000 44
- Changes of the product 46
- Multi-digit multiplication 48
- Dividing natural numbers 50
- Changes of the quotient 54
- Dividing numbers by 10; 100 and 1,000 56
- Dividing numbers by a multi-digit divisor 58
- Factor and multiple 60
- The order of operations 62
- Mixed exercises 65
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Geometry
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Measurement, statistics
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Angles
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Fractions
- Parts of a fraction 132
- Comparing fractions with a whole, mixed numbers 139
- Expanding and simplifying fractions 141
- Fractions on the number line 144
- Comparing fractions 146
- Adding and subtracting fractions with the same denominator 150
- Adding and subtracting fractions with different denominators 154
- Multiplying fractions by natural numbers 159
- Dividing fractions by natural numbers 162
- Mixed exercises 164
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The rectangle
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The cuboid
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Decimals
- Decimal numbers 212
- Decimal numbers on the number line 214
- Expanding, simplifying and comparing decimal numbers 216
- Rounding decimal numbers 219
- Adding and subtracting decimal numbers 222
- Multiplying and dividing decimal numbers by 10; 100 and 1,000 226
- Multiplying and dividing decimal numbers by natural numbers 229
- The decimal form of fractions 232
- Mixed exercises 235
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Integers
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Orientation
