Question

Fill in the missing number: 497 + = 1,404

Answer 1

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 2

Answer:

907

Step-by-step explanation:

1,404 - 497=907