Number Sense Routines : Building Numerical and similar items

New book. Please see the photos for more details. THE FINE PRINT: I will ship the item within 1 business day of receiving payment. I only accept PayPal payments. I am willing to combine shipment for a discount if you buy multiple items from me. For example with CDs, each additional CD will have a shipping and handling cost of $1.00, as long as they are paid for at the same time. So for example, if you win 10 CDs from me, you would pay the full shipping cost on the first CD, and $9 more to cover the shipping and handling for the other CDs. Yes, I know that's not the exact postage that it would take to actually send the CDs to you, but keep in mind that these are shipping AND HANDLING costs which include the cost of the packaging, time and travel costs, etc. Also notice that it's much cheaper shipping than if you bought the CDs elsewhere. HOWEVER, IF YOU WIN 15 OR MORE CD AUCTIONS in a 7 day period, and wait for me to invoice you, I will only charge you the exact shipping cost that it costs me to send you the CDs. If you win more than 1 of my sales, I will send you an invoice that shows the combined shipping discount after you've finished bidding. If you win more than 3 CDs from me then they'll ship by Media Mail instead of 1st Class because of weight limitations of 1st Class mail. For multiple disc DVD sets, the additional shipping charge is a little more than with CDs, and for books it's even a little bit more. The reason for this is because of the increased weight. Payment is expected within 7 days of the end of the auction.