Adventures with your Pocket Calculator (by Covers etc)
From 1980, cover design by Christopher Millett
Adventures with your Pocket Calculator (by Covers etc)
From 1980, cover design by Christopher Millett
Like learning to spell 8008, 07734, 7734, and 7738. Probably more then that too. Why use a calculator for math?
From 1980, cover design by Christopher Millett