Equate! is a one-player mathematical card game - you have to make
equations by dragging arithmetic operators between the cards you're
dealt. Try to make the longest equation you can to get the most
points. If you can't make an equation, you'll have to deal more cards,
whose values will be added to the current ones. Once you've created an
equation, you can remove it and the spaces will be filled with cards
from the deck. There are options for how many cards will be dealt at a
time, and you can play a timed or untimed game.

DL #1: Version 2.0.1, released in 2001

Compatibility
Architecture: 68k

800x600 monitor or larger
Thousands of colours recommended
HyperCard or HyperCard Player 2.1 or later.