Trouve les nombres manquants :

13 + 4 = .....70 : ..... = 10
25 - 10 = .....21 - 17 = .....
..... : 7 = 118 + ..... = 17
9 × 5 = .......... - 4 = 0
..... + 9 = 31..... + 13 = 20
40 : 5 = .....28 - 7 = .....
8 × 9 = .....30 - 23 = .....
10 × 9 = .....20 + 6 = .....
17 - 5 = .......... - 16 = 4
32 - 20 = .....44 - ..... = 24