Question

Need explaining ASAP I’m in year 4

Answer 1

first one is 30 5 40

35 25 15

10 45 20

second one is 5 26 11

20 14 8

17 2 23

third one is 9 16 11

14 1210

13 8 15

and forth one is 20 70 60

90 50 10

40 30 80

Explanation:

which ever direction you know 2 of 3 numbers, you add them and subtract the sum its supposed to add up to. rough explanation