Four Basic Operations on Rational numbers. Mathematics State Board, Class 8: lessons, tests, tasks.

1.	Addition of various digits
2.	Subtraction of Rational numbers
3.	Multiplication of Rational numbers
4.	Division of rational numbers

1.	Addition with same denominator Difficulty: easy	2
2.	The sum of the negative fraction if the denominators are the same Difficulty: easy	3
3.	Divide a fraction by integer Difficulty: easy	2
4.	Multiplication of a rational number Difficulty: medium	4
5.	The sum of negative mixed numbers Difficulty: medium	4
6.	Find the required number Difficulty: medium	4
7.	Multiplication of a mixed number Difficulty: medium	2.5
8.	Divide and multiply Difficulty: medium	3
9.	Multiplication of two fractions Difficulty: medium	2
10.	Calculate the required number Difficulty: medium	4
11.	Negative value added to the real rational number Difficulty: medium	4
12.	Multiplication of three rational numbers Difficulty: medium	3
13.	Divide a mixed number by a positive or negative integer Difficulty: medium	3
14.	Subtract the negative part from the fraction Difficulty: medium	2
15.	Divide the mixed number Difficulty: medium	3
16.	Division and multiplication of rational numbers(text format) Difficulty: medium	2
17.	Divide an integer by a real fraction Difficulty: medium	2
18.	Road, speed, time (rational numbers) Difficulty: hard	5
19.	Calculate the unknown additive from the sum Difficulty: hard	5
20.	Mixed number and integer (negative numbers) Difficulty: hard	4
21.	Rational expression (difference) Difficulty: hard	6
22.	Rational expression substitution Difficulty: hard	7

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Training

Difficulty: easy

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Methodical recommendation

Four Basic Operations on Rational numbers