Question

745 - ___= 300+345 fill ups​

Answer 1

Answer:

100

Step-by-step explanation:

let the blank be x

so 745 - x = 300 + 345

745 - x = 645

-x = 645 - 745

-x = -100

so +x = +100

Answer 2

Answer:

100

Step-by-step explanation:

let the blank be x

so 745 - x = 300 + 345

745 - x = 645

- x = 645 - 745

- x = - 100

so x = 100