# Decimal numbers : correction of the exercises in sixth grade

Exercise of mathematics in class of sixth (6eme) on the decimal numbers.Determine the positions of a number and conversions of units of magnitude.

### Exercise 1:

Place spaces in the following numbers:
a. 1 512
b. 63 829
c. 468 803 576

### Exercise 2:

a. In 13, the number of units is 3.
b. In 692, the hundreds digit is 6.
c. In 1,354, the tens digit is 5.
d. In 6,083,472, the hundreds of thousands digit is 0.
e. In 7291, the number 9 represents the tens digit.
f. In 89,463,515, the number 9 represents the units of a million.

### Exercise 3:

Calculate the following expressions:
A=(4×10)+2=40+2=42
B=(4×100)+(7×10)=400+70=470
C=(3×100 000)+(6×10 000)+(1×10)=300 000 + 60 000 + 10=360 010

### Exercise 4:

Write each of the following numbers in figures:
a. forty-seven : 47
b. seven hundred and twenty-five: 725
c. two hundred and thirty-four thousand seven hundred and thirty-four: 234,734
d. ninety-six billion one hundred and eight million seven hundred and twenty-eight thousand thirty-two.

96 108 728 032

### Exercise 5:

Convert the following data:
460 dm=4.6dam
8,3 dam =8 300 cm
7,49 dam = 7 490 cm
80 mm = 0.000 08 km
1 kL=10 000 dL
13 cg= 0,13 g
400.1 g= 4.001 hg

### Exercise 6:

Write in decimal form:
a. =3,1
b. = 400,005 6
c. =3,62

### Exercise 7:

Complete with two consecutive integers :
a. 6< 6.2 <7
b. 10 001<10 001,2 < 10 002
c. 3,939 < 3,939.01< 3940

Title :
Decimal numbers

Correction:

Exercise of mathematics in class of sixth (6eme) on the decimal numbers.Determine the positions of a number and conversions of units of magnitude.

Type:

Level :

## The exercises in the sixth grade

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