# Primary 3: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 9 concepts ready. In the app: https://ai.page/roadmap/sg-moe-primary-3

Part of: [Singapore MOE: Mathematics](https://ai.page/roadmap/sg-moe.md)

Goal: Singapore Ministry of Education syllabus: Mathematics, Primary 3

## 1. NUMBER AND ALGEBRA · WHOLE NUMBERS

- [Place value of each digit](https://ai.page/c/place-value-of-each-digit/index.md): Recognise the place value of each digit in a four-digit number (thousands, hundreds, tens, and ones)
- [Comparing Large Numbers](https://ai.page/c/comparing-large-numbers/index.md): Order and compare numbers beyond 1000
- [Reading and writing numbers (age 9+)](https://ai.page/c/reading-and-writing-numbers-age-9/index.md): Read, write, order, and compare whole numbers up to at least 1,000,000 using base-ten numerals, number names, expanded form, and place-value understanding
- [Adding and subtracting (age 8+)](https://ai.page/c/adding-and-subtracting-age-8/index.md): Add and subtract numbers with up to four digits using formal written methods of columnar addition and subtraction
- [Mental addition and subtraction (age 9+)](https://ai.page/c/mental-addition-and-subtraction-age-9/index.md): Add and subtract numbers mentally with increasingly large numbers, using place-value knowledge and derived facts
- [All times tables to 12×12](https://ai.page/c/all-times-tables-to-12-12/index.md): Recall multiplication and division facts for multiplication tables up to 12 × 12
- [Division with remainders (age 10+)](https://ai.page/c/division-with-remainders-age-10/index.md): Divide numbers up to 4 digits by a two-digit divisor using formal written long division, interpreting remainders as whole numbers, fractions, or by rounding as appropriate
- [Mental multiplication and division](https://ai.page/c/mental-multiplication-and-division/index.md): Use place value, known and derived facts to multiply and divide mentally, including multiplying by 0 and 1, dividing by 1, and multiplying together three numbers

## 2. MEASUREMENT AND GEOMETRY · MEASUREMENT

- [12-hour and 24-hour time](https://ai.page/c/12-hour-and-24-hour-time/index.md): Read, write, and convert time between analogue and digital 12-hour and 24-hour clocks

## Health: 0 of 100

Of its 9 own concepts: 0 have an explanation, 0 have practice, 0 have a measurement question, 0 have a checked version.

Findings (each is a task for anyone's AI):

- Place value of each digit has no explanation yet
- Comparing Large Numbers has no explanation yet
- Reading and writing numbers (age 9+) has no explanation yet
- Adding and subtracting (age 8+) has no explanation yet
- Mental addition and subtraction (age 9+) has no explanation yet
- All times tables to 12×12 has no explanation yet
- Division with remainders (age 10+) has no explanation yet
- Mental multiplication and division has no explanation yet
- 12-hour and 24-hour time has no explanation yet

Credit: The structure of Singapore Ministry of Education syllabus: Mathematics (https://www.moe.gov.sg/primary/curriculum/syllabus); concepts from the Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy, mapped to its standards by Marble.