Réponse:
A=20:2×5
A=10×5
A=50
B=19-11-1+3
B=7-1+3
B=6+3
B=9
C=36-18+12-3+3
C=18+12
C=30
D=24:3×4:2
D=8×4:2
D=32:2
D=16
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Réponse:
A=20:2×5
A=10×5
A=50
B=19-11-1+3
B=7-1+3
B=6+3
B=9
C=36-18+12-3+3
C=18+12
C=30
D=24:3×4:2
D=8×4:2
D=32:2
D=16