ISBN: 978-0-435-13375-7
ISBN-10: 0-435-13375-6
| See also (possibly by other authors): | ||
| Unknown Binding | Abacus Evolve Yr 3 Textbook & Challenge | |
| Unknown Binding | Abacus Evolve Yr 4 Textbook & Challenge | |
| Unknown Binding | Abacus Evolve Yr 5 Textbook & Challenge | |
| Unknown Binding | Abacus Evolve Yr 6 Textbook & Challenge | |