Buy vs Rent: We recommend you Buy
This compares the total cost of owning the book (cheapest buy price minus the best sell-back offer today) with the cheapest rental.
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Disclaimer: These calculations are based on the current advertised price. Your results will vary depending on several factors, including the condition of the book and the advertised price at the time of sale.
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$1.09 as of Oct 20, 2026, 3:15 AM ET |
$3.97 | |||
| Knetbooks Used |
Used | $7.39 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| BiggerBooks New |
New | $7.90 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| Knetbooks New |
New | $7.94 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| Knetbooks Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$10.00 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| eCampus New |
New | $7.98 as of Oct 20, 2026, 3:15 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$1.09 as of Oct 20, 2026, 3:15 AM ET |
$3.97 | |||
| Knetbooks Used |
Used | $7.39 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| BiggerBooks New |
New | $7.90 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| Knetbooks New |
New | $7.94 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
| eCampus New |
New | $7.98 as of Oct 20, 2026, 3:15 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$10.00 as of Oct 20, 2026, 3:15 AM ET |
at checkout | |||
Prices checked Oct 20, 2026, 3:15 AM ET. Totals include shipping where the store lists it.
Also check: VitalSource (eBooks) · AbeBooks (marketplace) · SellBackBooks (sell back)
Grade 4 Geometry and Measurement focuses on the following topics: Read and write fractions and decimals on a number line Understand and apply concepts of lines, angles, and circles Draw two-dimensional figures Measure and find the area and perimeter of rectangular shapes using appropriate units Measure volume using standard cubic units Measure surface area of cubes and rectangular prisms by adding up the area of the faces Calculate elapsed time in hours and half hours Calculate elapsed time in days and weeks
When you open this page we ask eCampus, Knetbooks, BiggerBooks and VitalSource for their current prices on ISBN 9781934968673 and sort every offer by its total with shipping. Rental rows show the term (semester, quarter or short term) and that term goes with you to the store's cart, and eBook rows link straight to the 180-day or no-expiry option you picked. Prices are rechecked at least every 30 minutes, so confirm the total at checkout.
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