Réponse:
a=90 car
120÷4=30
30×3=90
b=8 car:
12÷3=4
4×2=8
c= 90 car:
100÷10=10
10×9=90
d= 14 car:
49÷7=7
7×2=14
a 3*120=360:4=90 b 2*12=24:3=8 c 9*100=900:10=90 d 2*49=98:7=14
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Réponse:
a=90 car
120÷4=30
30×3=90
b=8 car:
12÷3=4
4×2=8
c= 90 car:
100÷10=10
10×9=90
d= 14 car:
49÷7=7
7×2=14
Réponse:
a 3*120=360:4=90 b 2*12=24:3=8 c 9*100=900:10=90 d 2*49=98:7=14