Order the Arithmetic Series (set of 5 programs) license for up to 30 computers. Arithmetic Series - License for up to 30 Computers Arith(30)$999.00Media Type (CD-ROM): WindowsMacintosh Arithmetic Series + Word Problems for Arithmetic (set of 6 programs) - License for 30 computers Order the Arithmetic Series with the Word Problems for Arithmetic program(set of 6 programs) license for up to 30 computers. Availability: Usually ships in 2-3 business days. Arithmetic Series + Word Problems for Arithmetic (set of 6 programs) - License for 30 computers Arith+WP(30)$1,299.00Media Type (CD-ROM): Windows