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Exercise 1:

Exercise 2:

Exercise 3:

Exercise 4:

Exercise 5:

There are 103 years between these two deaths.

Exercise 6:

Exercise 7:

A = ( – 5 ) – ( + 7 ) – ( – 3 ) + ( + 11 ) B = ( – 2 ) + ( – 1 ) – ( + 4 ) + ( – 3 ) – ( – 8 )

C = ( – 28 ) – ( – 32 ) + ( -25 ) + ( + 28 ) + ( -32 ) D = ( – 25 ) – ( – 36 ) + ( + 12 ) – ( + 13 ) – ( – 10 )

E = 15 + 7 – 12 + 18

E=28

F = – 9 + 3 – 4 + 7

F=-3

G = 18 + 12 – 9 + 11 – 15 + 10

G = 27

Exercise 8:

Calculate the following numerical expression:

Exercise 9:

1.

2. Arrange the following relative numbers in descending order:

3. Give all negative integers greater than – 5.1

-5;-4;-3;-2;-1;0

4. Complete with a relative number: 0.005 <0.0054 < 0.01; – 6.1 < -6.05 < – 6.

5. Give all the relative integers that verify – 2.9 < *a* < 2.1 .

-2;-1;0;1;2

Exercise 10:

A =( 5-7 )+(-9)

A =( -2 )+(-9)

A = – 2 – 9

A = -11

B = [(-4) +( 5-3)] – (7+8)

B = [(-4) +(2)] – (15)

B = (-2) – (15)

B = – 2 – 15

B = – 17

C = [(8-9) -3] -( 8+4 )

C = [(-1) -3] -(12 )

C = (-4) -(12 )

C= – 4 – 12

C= – 16

D = [(1-3) +7) -2] + (7-8)

D = [((-2) +7) -2] + (-1)

D = [(+5) -2] + (-1)

D = (+3) + (-1)

D = 2

Exercise 11:

The abscissa of the first graduated line are :

A( + 2 ) B(-4) C(-2) D(0) E(+3) F(-3) G(+3,5) H(-3,5) .

The following numbers are arranged in ascending order:

-5.8<-5.35<-3.7<0<+6.28<+6.4

Exercise 12:

A = -27+12-( -4) + (-55) +5

A = -27+12+( +4) + (-55) +5

A = -27+12+4-55 + 5

A = -15+4-55 +5

A = -61

B =10,2+( -33) – (+4,7) +8,9+ (-7,8) – (-10,5)

B =10,2+( -33) + (-4,7) +8,9+ (-7,8) + (+10,5)

B =10,2 -33-4,7+8,9-7,8+10,5

B =10,2 -33 -4,7 +8,9 -7,8 +10,5

B = – 15,9

C = -101+23,7+ (-42,8) + (-32,9) +74,2

C = -101+23,7-42,8-32,9+74,2

C = -78,8

Exercise 13:

A=(-6)+(+7)+(+10)+(-11)

A=-6+7+10-11

A=1+10-11

A=0

B=(-2)+(-7)+(+9)

B=-2-7+9

B=-9+9

B=0

C=(-3)+(-7)+(+3,5)+(+8)+(-1)

C=-3-7+3,5+8-1

C=-10+3,5+8-1

C=-6,5+8-1

C=1,5-1

C=0,5

D=(-4)+(+9)-(-2)

D=-4+9+2

D=5+2

D=7

E=(+8)-(-5)-(+12)+(-2)

E=8+5-12-2

E=13-12-2

E=1-2

E=-1

Exercise 14:

The drawing represents a boat.

Exercise 15:

A=(-8)+(+9)+(+4)+(-6)

A=-8+9+4-6

A=1+4-6

A=5-6

A=-1

B=(-25)+(-75)+(+37)+(+13)

B=-25-75+37+13

B=-100+37+13

B=-63+13

B=-50

C=(-6,4)+(+1,2)+(-12,3)+(-8)

C=-6,4+1,2-12,3-8

C=-5,2-12,3-8

C=-17,5-8

C=-25,5

Exercise 16:

A= -2+(-5+3)+7 = 3 | E=12–(7–9)–(-10+9)=15 | F= -4-8+(3-11)+2 = – 18 |

G=7-(12-8-15)-(-7+4) = 21 | I=5-(-7+2)-9 = 1 | L=2-(-8+15)-(-2+11-4) = – 10 |

N= -9-(4-8+7)-4 = – 16 | P= -9+(-4-7+6)+(-5+9-12)=- 22 | R= -4+5-(2-8)-9 = – 2 |

S= -8-(-4+5-7)+(-2+9) = 5 | T=3-(5-9)-(12-4+7) = – 8 | U= -5-(-9+2)-(-4+6-11) = 11 |

## Answers to the exercises on relative numbers in 5th grade.

After consulting the answers to these exercises on relative numbers in 5th grade, you can return to the exercises in 5th grade.

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