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.	Multiple choice question I Difficulty: easy	2
2.	Multiple choice question II Difficulty: easy	3
3.	Fill in the blanks Difficulty: easy	5
4.	Say true or false Difficulty: easy	5
5.	Two marks example problems I Difficulty: medium	4
6.	Two marks example problems II Difficulty: medium	4
7.	Two marks example problems III Difficulty: medium	6
8.	Two marks example problems IV Difficulty: medium	4
9.	Two marks exercise problems I Difficulty: medium	4
10.	Two marks exercise problems II Difficulty: medium	4
11.	Two marks exercise problems III Difficulty: medium	4
12.	Two marks exercise problems IV Difficulty: medium	4
13.	Two marks exercise problems V Difficulty: medium	4
14.	Five marks example problems V Difficulty: hard	5
15.	Five marks example problems VI Difficulty: hard	5
16.	Five marks example problems VII Difficulty: hard	5
17.	Five marks example problems VIII Difficulty: hard	5
18.	Five marks exercise problems VI Difficulty: hard	10
19.	Five marks exercise problems VII Difficulty: hard	5
20.	Five marks exercise problems VIII Difficulty: hard	5
21.	Five marks exercise problems IX Difficulty: hard	5
22.	Five marks exercise problems X Difficulty: hard	5

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

1.	Detemine the missing number Difficulty: medium	2
2.	Simplify the expression Difficulty: hard	5
3.	Find the original number Difficulty: hard	5

1.

Methodical recommendation

Four Basic Operations on Rational numbers