Trouve les nombres manquants :

19 + 17 = .......... + 8 = 30
1 × ..... = 1..... + 16 = 37
21 + ..... = 24..... - 18 = 9
..... + 5 = 2420 : 2 = .....
15 + ..... = 328 × 2 = .....
10 + ..... = 308 + 6 = .....
17 - 3 = .......... - 23 = 11
3 × 11 = .....36 : 6 = .....
22 + ..... = 36..... + 12 = 29
4 × ..... = 324 + ..... = 17