Addition & Subtraction Question Number 1

What is the result of the following calculation: 376 - 597 + 233 = ?

Addition & Subtraction Question Number 2

What is the result of the following calculation: 423 + 225 - 303 = ?

Addition & Subtraction Question Number 3

What is the result of the following calculation: 500 - 212 = ?

Addition & Subtraction Question Number 4

What is the result of the following calculation: 412 + 300 + 200 = ?

Addition & Subtraction Question Number 5

What is the result of the following calculation: 800 - 400 + 100 - 200 = ?