Rock 'n' Roll Arithmetic

Sky High

Just heard another of their hits over the weekend, maybe only other one I remember. I could even sing along with most of it after not hearing it for decades.

Jigsaw + 1 / (Hate Ice) = [song]

Decode the song title pretty literally.

Jigsaw + (Hate Ice) * -1 = [song]

That's the one. I assume you don't remember it.

Island Girl

America + Jessie "The Body" + 20 = [song]

Highway 20

U.S. Route 20 or U.S. Highway 20 (US 20) is an east–west United States Numbered Highway that stretches from the Pacific Northwest east to New England. The "0" in its route number indicates that US 20 is a major coast-to-coast route. Spanning 3,365 miles (5,415 km), it is the longest road in the United States,[1] and, in the east, the route is roughly parallel to Interstate 90 (I-90), which is the longest Interstate Highway in the U.S. There is a discontinuity in the official designation of US 20 through Yellowstone National Park, with unnumbered roads used to traverse the park.

Correct song, by the way.

Chicken Fried

This will likely take a bit of research.

Boz Scaggs + Celtics + 10 = [song]

Nope. But that's on the right track.

Boz Scaggs + DiMaggio + Pesci = [song]

Yup.

Romeo And Juliet

I don't know that one. Looks like it charted high in the UK, but nowhere else.

Romeo and Juliet appear in a song lyric.

The Pointer Sisters + Romeo and Juliet = [song]