d) \( 31-19+28-12 \) e) \( 123-345+678 \) f) \( 47-78-(-64) \) g) \( -100-150+0 \) h) \( 56-(-50)-40 \)

Let’s dive into some numerical adventures! For the first equation, \( 31-19+28-12 \), we start by subtracting: \( 31 - 19 = 12 \). Then, add \( 28 \) to get \( 12 + 28 = 40 \). Finally, subtract \( 12 \): \( 40 - 12 = 28 \). On to the second challenge, \( 123-345+678 \): First, subtract: \( 123 - 345 = -222 \). Next, add \( 678 \): \( -222 + 678 = 456 \). Now for \( 47-78-(-64) \). Here, subtract \( 78\) first: \( 47 - 78 = -31 \). Then, subtracting a negative is like adding, so we have \( -31 + 64 = 33 \). Next on the list is \( -100-150+0 \). Starting with \( -100 - 150 = -250 \) and then adding zero keeps it at \( -250 \). Lastly, the equation \( 56-(-50)-40 \) requires subtracting a negative first: \( 56 + 50 = 106 \). Now, subtract \( 40 \): \( 106 - 40 = 66 \). So there you have it! Each number embraced their math destiny with a bit of flair!