Parity Rules: odd + odd = even even + even = even odd + even = odd even - even = even odd - odd = even odd - even = odd even - odd = odd For multiplication: any expression with an even factor is even; odd × odd = odd

43 + 37: 43 is odd, 37 is odd odd + odd = even ∴ 43 + 37 is even

672 - 348: 672 is even, 348 is even even - even = even ∴ 672 - 348 is even

$4 \times 347$ × 3: Contains factor 4 (even) Any expression with an even factor is even ∴ $4 \times 347$ × 3 is even

708 - 477: 708 is even, 477 is odd even - odd = odd ∴ 708 - 477 is odd (NOT even)

809 + 214: 809 is odd, 214 is even odd + even = odd ∴ 809 + 214 is odd (NOT even)

$119 \times 303$: 119 is odd, 303 is odd odd × odd = odd ∴ $119 \times 303$ is odd (NOT even)

543 - 479: 543 is odd, 479 is odd odd - odd = even ∴ 543 - 479 is even

513³: 513 is odd odd³ = odd ∴ 513³ is odd (NOT even)

Answer: The even expressions are 43 + 37, 672 - 348, $4 \times 347$ × 3, and 543 - 479.