Rapid math : tricks & tips : 30 days to number power /
Julius, Edward H.,
Rapid math : tricks & tips : 30 days to number power / Edward H. Julius. - ix, 229 pages : illustrations ; 25 cm.
0471575631
Arithmetic.
Rapid math : tricks & tips : 30 days to number power / Edward H. Julius. - ix, 229 pages : illustrations ; 25 cm.
0471575631
Arithmetic.
