Most bookstores that carry Marshall Cavendish Education products sell a Teacher’s Guide which contains all the answers and worked solutions.

🛑 STOP SCROLLING! My Pals Are Here Maths 4B Workbook Solutions! 📚✨

The Singapore forum has active threads where parents post specific questions. You can say: "Hi, can someone explain Q7 on page 45 of MPH 4B Workbook Chapter 8?" Expect help within 12 hours.