Simple Arithmetic (SA) Skill

SUB SKILL (KLIs as per FONS)
  1. Is able to do simple arithmetic calculations (add1, subtract 1)
  2. Counts items that can be perceived by ones to find the total of two groups with one-to-one matching of number words and objects
  3. Builds and subtracts numbers by using objects or fingers
KEY LEARNING INDICATORS

Level 1

SA1.1A
Performing simple instructions. Instructions to move from one point to another in classroom.
SA2.1A
Analyses and describes simple contextual problems in mathematical terms and finds the given and unknown data.
SA3.1A
Finds the strategies to reach unknown from the known.
Solves problems using addition and/or subtractions.
SA3.1B
Makes combinations to form numbers up to 10
SA3.1C
Solves additive tasks involving two concealed collections of items by visualising, counting from one to determine the total
SA3.1D
Uses a range of non–count-by-one strategies when adding or subtracting two or more numbers (bridging to 10, near doubles)

Level 2

SA1.2A
Devises her/his own ways to add 2-digit numbers. Later on uses algorithms for addition of numbers.
Develops her/his strategies to add and/or subtract a numbers from a two-digit number.
SA2.2A
Analyses and describes a problem involving addition and/or subtraction in terms of mathematical terms and finds the given and unknown data.
SA2.2B
Finds the strategies to reach unknown from the known.
SA2.2C
Solves problems using addition and/or subtraction with and without regrouping
SA3.2A
Shows difficulty in expressing repeated addition and appreciates the use of multiplication for repeated addition.
SA3.2B
Explores ways of equal grouping/sharing/ distribution.
SA3.2C
Understands division as another/his way of equal grouping /sharing /distribution.
SA3.2D
Uses part-whole construction of number to partition a whole number into parts (partitions 7 into 5 and 2, 6 and 1, 4 and 3)
SA3.2E
Applies inverse relationship of addition and subtraction
SA3.2F
Manipulates place value of numbers flexibly in regrouping for addition of three-digit numbers and beyond (when adding 650 and 550, regroups 650 as 600 and 50, adds 50 to 550, then doubles 600)

Level 3

SA1.3A
Adds and subtracts 3-digit numbers by using different strategies like using the concrete objects in bundles of hundreds, tens and ones or by standard algorithm or by her/his own algorithm but mathematically correct process.
SA1.3B
Analyses and describes a problem in mathematical terms and finds the given and unknown data.
SA2.3A
Appreciates the use of multiplication for repeated addition.
SA2.3B
Explores the multiplication facts of 2, 3, 4, 5 and 10 by different ways like repeated addition, skip counting, identifying and continuing pattern.
SA2.3C
Develops different algorithms to multiply two-digit numbers.
SA2.3D
Finds product of a two-digit number by another/his two-digit numbers.
SA3.3A
Explores ways of equal grouping/ sharing/distribution.
SA3.3B
Understands division as another/his way of equal grouping/ sharing /distribution.
SA3.3C
Performs division by grouping / using multiplication tables.
SA3.3D
Shows her/his understanding of division of two-digit numbers in equal distribution of money to number of persons.
SA3.3E
Find quotient of obtained division in two digit numbers.