Singapore Math

Primary 3

This course extends pupils’ understanding of whole numbers up to 10 000, including operations involving larger numbers and more complex mental and written calculation strategies. Pupils will also deepen their knowledge of multiplication and division, including division with remainders and working with larger multiplication tables. The course introduces fractions in greater depth, including equivalent fractions and simplification. In measurement, pupils explore larger and smaller units across length, mass, volume, time, and begin working with compound units. Geometry focuses on area, perimeter, angles, and lines, while statistics develops interpretation of bar graphs with different scales.

Objectives

  • Read, write, compare, and order numbers up to 10 000, including place value understanding
  • Perform addition and subtraction with up to 4-digit numbers using written and mental methods
  • Apply multiplication and division using tables of 6, 7, 8, and 9, including division with remainders
  • Multiply and divide up to 3-digit by 1-digit numbers
  • Understand, simplify, compare, and perform basic operations with fractions (including equivalent fractions)

Course Info

NUMBER AND ALGEBRA

SUB-STRAND: WHOLE NUMBERS
1. Numbers up to 10000
1.1 counting in hundreds/thousands

1.2 number notation, representations and place values (thousands, hundreds, tens, ones)

1.3 reading and writing numbers in numerals and in words

1.4 comparing and ordering numbers

1.5 patterns in number sequences
2. Addition and Subtraction
2.1 addition and subtraction algorithms (up to 4 digits)

2.2 mental calculation involving addition and subtraction of two 2-digit numbers
3. Multiplication and Division
3.1 multiplication tables of 6, 7, 8 and 9

3.2 multiplying and dividing within the multiplication tables

3.3 division with remainder

3.4 multiplication and division algorithms (up to 3 digits by 1 digit)

3.5 mental calculation involving multiplication and division within multiplication tables

 

SUB-STRAND: FRACTIONS
1. Equivalent fractions
1.1 equivalent fractions

1.2 expressing a fraction in its simplest form

1.3 comparing and ordering unlike fractions with denominators of given fractions not exceeding 12

1.4 writing the equivalent fraction of a fraction given the denominator or the numerator
2. Addition and Subtraction
2.1 adding and subtracting two related fractions within one whole with denominators of given fractions not exceeding 12

 

SUB-STRAND: MONEY
1. Money
1.1 adding and subtracting money in decimal notation

 

MEASUREMENT AND GEOMETRY

SUB-STRAND: MEASUREMENT
1. Length, Mass and Volume
1.1 measuring

  • length in kilometres (km)
  • volume of liquid in millilitres (ml)

1.2 measuring length/mass/volume (of liquid) in compound units

1.3 converting a measurement in compound units to the smaller unit, and vice versa • kilometres and metres

  • metres and centimetres
  • kilograms and grams
  • litres and millilitres

(numbers involved should be within easy manipulation)
2. Time
2.1 measuring time in seconds

2.2 finding the starting time, finishing time or duration given the other two quantities

2.3 24-hour clock

 

SUB-STRAND: AREA AND VOLUME
1. Area and Perimeter
1.1 concepts of area and perimeter of a plane figure

1.2 measuring area in square units, cm2 and m2, excluding conversion between cm2 and m2

1.3 perimeter of

  • rectilinear figure
  • rectangle
  • square

1.4 area of rectangle/square

 

SUB-STRAND: GEOMETRY
1. Angles
1.1 concepts of angle

1.2 right angles, angles greater than/smaller than a right angle
2. Perpendicular and Parallel Lines
2.1 perpendicular and parallel lines

2.2 drawing perpendicular and parallel lines

 

STATISTICS

SUB-STRAND: DATA REPRESENTATION AND INTERPRETATION
1.  Bar Graphs
1.1 reading and interpreting data from bar graphs

1.2 using different scales on axis

 

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