Singapore Math is the most advanced math curriculum in the world. Students who complete the Singapore Math book are 2-3 years ahead of other students. They perform better in real-life math and finance. Singapore Math uses the CPA method to teach math concepts to build a very strong foundation in math. Singapore Math is the most advanced math curriculum in the world. Students who complete the Singapore Math book are 2-3 years ahead of other students. They perform better in real-life math and finance. Singapore Math uses the CPA method to teach math concepts to build a very strong foundation in math. Singapore Math 1A is an 80-page activity-based book with Numbers (0 – 20), Number bond, Addition, Subtraction, Ordinal Numbers, Shape, Length, Weight concepts. Singapore Math 1A is appropriate for KG – 1, 2, and Grade – 1 student. Singapore Math 1A is an 80-page activity-based book with Numbers (0 – 20), Number bond, Addition, Subtraction, Ordinal Numbers, Shape, Length, Weight concepts. Singapore Math 1A is appropriate for KG – 1, 2, and Grade – 1 student.