effectuer et simplifier les calcule -8 -9 _ × _ = 12 -3 15 3 _ ÷ _ = 16 8 2 5 1
Mathématiques
adriana281
Question
effectuer et simplifier les calcule
-8 -9
_ × _ =
12 -3
15 3
_ ÷ _ =
16 8
2 5 19
_ + _ - _ =
3 4 12
3 5 7
_ - _ × _ =
2 2 5
7 1 5
( _ - _ ) ÷ _ =
6 2 3
-8 -9
_ × _ =
12 -3
15 3
_ ÷ _ =
16 8
2 5 19
_ + _ - _ =
3 4 12
3 5 7
_ - _ × _ =
2 2 5
7 1 5
( _ - _ ) ÷ _ =
6 2 3
1 Réponse
-
1. Réponse nonotata
-8 -9
_ × _ = -72/36= -2
12 -3
15 3
_ ÷ _ = 15/6 x8/3 = 120/18 = 6/3 =2
16 8
2 5 19
_ + _ - _ = 8/12 +15/12 -19/12 = 23/12-19/12 = 4/12 =1/3
3 4 12
3 5 7
_ - _ × _ = 3/2 -7/2 = -4/2 = -2
2 2 5
7 1 5
( _ - _ ) ÷ _ = je ne comprend pas le decalage
6 2 3