Answer:
139
Explanation:
You put 1 beucase 6*1 is 6 and beucase since 6 has no 8 in times tables the closest is 6 and then you minus 8-6 and get 2 then bring down the 3 and it’s creates 23 then 6 time 3 is 18 which is the losest nd when you subtract 23-18 it’s 5 and you bring down the 4 which is 54 then you see 6 times 9 is 54 so it matches