De bas en haut:
-7 -9 21 -24
-16 12 -3
-4 9
5
Bonjour
• -7 + (-9) = -16
• -16 + ? = (-4)
? = -4 + 16 = 12
• 12 + (-3) = 9
• -9 + ? = 12
? = 12 + 9 = 21
• 21 + ? = -3
? = -3 - 21 = -24
• 9 + (-4) = 5
-4 | 9
-16 | 12 | -3
-7 | -9 | 21 | -24
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Verified answer
De bas en haut:
-7 -9 21 -24
-16 12 -3
-4 9
5
Bonjour
• -7 + (-9) = -16
• -16 + ? = (-4)
? = -4 + 16 = 12
• 12 + (-3) = 9
• -9 + ? = 12
? = 12 + 9 = 21
• 21 + ? = -3
? = -3 - 21 = -24
• 9 + (-4) = 5
5
-4 | 9
-16 | 12 | -3
-7 | -9 | 21 | -24