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jojo123456
@jojo123456
June 2021
1
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Comment calculer ces expresions niveau 4eme :
-4x(-12-8)
(-3)x6+4x5
2x(-8)+(-9)x4
-15x(+2)+4x(-7)
1,5x3+(-2,5)x(-4)
-5x2,6+(12-4)x3
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Aftershock
-4*(-12-8)
= -4*(-20)
=
40
(-3)*6+4*5
= -18+20
=
2
2*(-8)+(-9)*4
= -16-36
=
-52
-15*2+4*(-7)
= -30-28
=
-58
1,5*3+(-2,5)*(-4)
= 4,5+10
=
14,5
-5*2,6+(12-4)*3
= -13+8*3
= -13+24
=
11
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jojo123456
June 2021 | 0 Respostas
pouvez vous m'aider s'il vous plait
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jojo123456
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jojo123456
June 2021 | 0 Respostas
Quelqu'un peut t'il m'aider, questions exercice 8 (15 points)
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jojo123456
June 2021 | 0 Respostas
oh! excuse, c"est ok je l'ai mise correctement, exercice 8 merci
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= -4*(-20)
= 40
(-3)*6+4*5
= -18+20
= 2
2*(-8)+(-9)*4
= -16-36
= -52
-15*2+4*(-7)
= -30-28
= -58
1,5*3+(-2,5)*(-4)
= 4,5+10
= 14,5
-5*2,6+(12-4)*3
= -13+8*3
= -13+24
= 11