Answer :
Answer:
907
Step-by-step explanation:
let x be the missing number
if 497 + x = 1404
you isolate the x
x=1404-497
x=907
you can check the work on a calc to see if 497 +907 = 1404 :)
Answer:
907
Step-by-step explanation:
let x be the missing number
if 497 + x = 1404
you isolate the x
x=1404-497
x=907
you can check the work on a calc to see if 497 +907 = 1404 :)