17)
4/40 = 1/10 = 10/100 = 10%
18)
3×(-4)× ? = -36
-12× ? = -36
-36 ÷ -12 = 3
3 × (-4) × 3 = -36
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17)
4/40 = 1/10 = 10/100 = 10%
18)
3×(-4)× ? = -36
-12× ? = -36
-36 ÷ -12 = 3
3 × (-4) × 3 = -36
De rien