Solve the following addition and subtraction problems: 371 + 42, 874 + 276, 482 - 31, 905 - 367.

$$371 + 42$$ $$371 + 40 = 411$$ $$411 + 2 = 413$$ $$\boxed{413}$$

$$874 + 276$$ $$874 + 200 = 1074$$ $$1074 + 70 = 1144$$ $$1144 + 6 = 1150$$ $$\boxed{1150}$$

$$482 - 31$$ $$482 - 30 = 452$$ $$452 - 1 = 451$$ $$\boxed{451}$$

$$905 - 367$$

Subtract the ones place: $5 - 7$. We need to borrow.
Borrow from the tens place, but it's 0, so borrow from the hundreds place.
905 becomes 8 hundreds, 9 tens, 15 ones.

$$15 - 7 = 8$$

Subtract the tens place: $9 - 6 = 3$
Subtract the hundreds place: $8 - 3 = 5$

$$905 - 367 = 538$$ $$\boxed{538}$$