# Primary 2: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 12 concepts ready. In the app: https://ai.page/roadmap/sg-moe-primary-2

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

Goal: Singapore Ministry of Education syllabus: Mathematics, Primary 2

## 1. NUMBER AND ALGEBRA · WHOLE NUMBERS

- [Tenths (age 8+)](https://ai.page/c/tenths-age-8/index.md): Count up and down in hundredths; recognise that hundredths arise when dividing an object by 100 or dividing tenths by 10
- [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)
- [Reading and writing numbers to 1000](https://ai.page/c/reading-and-writing-numbers-to-1000/index.md): Read and write numbers to 1000 in numerals, number names, and expanded form
- [Comparing Large Numbers](https://ai.page/c/comparing-large-numbers/index.md): Order and compare numbers beyond 1000
- [Odd and even numbers](https://ai.page/c/odd-and-even-numbers/index.md): Recognise odd and even numbers
- [Adding and subtracting (age 7+)](https://ai.page/c/adding-and-subtracting-age-7/index.md): Add and subtract numbers with up to three digits using formal written methods of columnar addition and subtraction
- [Mentally adding hundreds to 3-digit numbers](https://ai.page/c/mentally-adding-hundreds-to-3-digit-numbers/index.md): Mentally add and subtract a three-digit number and hundreds
- [Mentally adding tens to 3-digit numbers](https://ai.page/c/mentally-adding-tens-to-3-digit-numbers/index.md): Mentally add and subtract a three-digit number and tens
- [Times tables](https://ai.page/c/times-tables/index.md): Recall and use multiplication and division facts for the 2, 5, and 10 multiplication tables
- [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
- [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

- [Converting measurement units](https://ai.page/c/converting-measurement-units/index.md): Convert between different units of measure (e.g. kilometre to metre, hour to minute, minute to second, year to month, week to day)

## Health: 0 of 100

Of its 12 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):

- Tenths (age 8+) has no explanation yet
- Place value of each digit has no explanation yet
- Reading and writing numbers to 1000 has no explanation yet
- Comparing Large Numbers has no explanation yet
- Odd and even numbers has no explanation yet
- Adding and subtracting (age 7+) has no explanation yet
- Mentally adding hundreds to 3-digit numbers has no explanation yet
- Mentally adding tens to 3-digit numbers has no explanation yet
- Times tables has no explanation yet
- All times tables to 12×12 has no explanation yet
- Mental multiplication and division has no explanation yet
- Converting measurement units 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.