 Addition, subtraction, multiplication and decimal and Euclidean division through a series of corrected 6th grade math exercises on the 4 operations. The student should master the four operations and be able to add, subtract, multiply, and divide in rows and columns. He should also master the different criteria of divisibility as well as the vocabulary of sum, difference, product and quotient.

In 6th grade, students learn to use the four fundamental operations of arithmetic: addition, subtraction, multiplication and division.

Numerous corrected exercises that allow students to practice online on materials similar to their textbook and to develop their skills in the four operations through calculations and problem solving.

This worksheet on the 4 operations: addition, subtraction, multiplication and decimal and Euclidean division are corrected and written by a team of sixth grade teachers.

Exercise 1

Mental calculation:

a. 0.065×10 b. 79.2x 1,000 c. 71.47 x 100 d. 0.34 x 1,000 e. 87 x 100

f. 934 x 10 g. 0.001 x 1,000 h. 0.05 x 10 000.

Exercise 2

Convert the following lengths:

a. 84 km in m. b. 84 hm in m. c. 84 mm in m. d. 84 dm in m.

e. 3.1 hm in km. f. 3,1 dam in m. g. 3.1 m in hm.

Exercise 3

a. 5,6 + 7,2 b. 2,2 + 6,3 c. 3,5 + 7,1 d. 6,3 + 7,6 e. 9+ 3,5 f. 2,9 + 6,5 g. 5,8 + 9,3

Exercise 4

Mentally calculate the following subtractions:

a. 5,5 – 4,3 b. 4,6 – 0,5 c. 2,8 – 2,1 d. 6,7 – 0,5 e. 3,8 – 3,5 f. 4,6 – 2,8 g. 9,7 – 5,9.

Exercise 5

Place the comma in the number written in bold type so that the equality is true. Exercise 6

Put the following multiplications and calculate. Exercise 7

Copy and place correctly the comma in red in the underlined numbers:

1/ 75,315×4,83=36377145

2/ 1,08×471591=509,31838

3/ 54026×247=133,44422

4/ 0,861597×552,5=4760323425

Exercise 8

Putting down the multiplication to calculate :

– the product of 5.4 by 60.9 ;

– the product of 7.536 by 8.6 .

Exercise 9

Copy and give the result:

1/ 45×10=…

2/ 57,6×0,1=…

3/ 5,69×0,001=…

4/ 8,67×1000=…

5/ 12,1×10=…

6/ 0,089×100=…

7/ 0,089×100=…

8/ 100×0,0001=…

Exercise 10

Calculate the following products by making clever groupings:

1/ A=4×3,98×25×10

2/ B=8×7,1234×25

3/ Give the fundamental property of the course that allowed you to perform these calculations.

Exercise 11

Perform the following decimal divisions to find the exact decimal quotient. Exercise 12

1/ For one concert, ten thousand tickets were sold.

The ticket costs 11 € 20. What is the recipe?

2/ A ten-car train carries cars with a unit price of

There are ten cars per wagon.

How much money is in all the cars on this train? Things to remember: • Know the definition of a term, sum and difference, product and quotient;
• Know how to add in rows and columns
• Know how to subtract in rows and columns;
• know how to multiply and multiply by 10, 100, 1000, 0.1, 0.01, 0.001 etc…
• Give an order of magnitude of a sum, product, quotient or difference

These exercises are in accordance with the official programs of thenational education.

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