Primary 1 Maths

Here is a list of all of the maths skills students learn in Primary 1! These skills are organised into topics. To start practising these skills, log in your KooBits account and choose any topic and skill under Mission.

Numbers Up to 10

  1. Count to 10 in numbers
  2. Count to 10 in words
  3. To count the number of objects
  4. Count to 0
  5. Compare the number of objects in two or more sets
  6. Compare two numbers within 10
  7. Count on to find 1 more
  8. Count back to find 1 less
  9. Concept of more-than using pictorial representation
  10. Concept of less-than using pictorial representation
  11. Find ordinal relationship with just-before and just-after
  12. Find multiple progression ordinal relationship with greater-than and less-than
  13. Find the missing number(s) in a given number pattern

Addition Within 10

  1. Make number bonds for numbers up to 10
  2. Use number bonds to add in any order
  3. Count on to add within 10
  4. Adding the parts to find the total
  5. Writing addition equations
  6. Solve word problems involving addition within 10
  7. One-step addition problem involving the total quantity after an event
  8. To find total quantity for two characters
  9. Addition problem involving two persons with more-than relationship. Find quantity for the 2nd person.

Subtraction Within 10

  1. Subtract by taking away
  2. Count back to subtract within 10
  3. Count on to subtract within 10
  4. Use number bonds to subtract
  5. Writing subtraction equations
  6. Solve word problems involving subtraction by finding the other part
  7. Solve word problems involving subtraction by taking away
  8. One-step subtraction problem involving the final quantity after an event
  9. Subtraction problem involving two persons with less-than relationship. Find quantity for the 2nd person.
  10. One-step subtraction problem to find the age difference between two persons

2D Shapes

  1. Identify 2D shapes
  2. Identify 2D shapes from real objects and pictures
  3. Grouping shapes by attributes – sides, corners, sizes and colours
  4. Complete patterns with 2D shapes
  5. Sum numbers involving shapes of circle, triangle, rectangle and square
  6. Identify pattern formations involving shapes of circle, triangle, rectangle and square
  7. Identify pattern formations involving shapes in combination of circle, triangle, rectangle and square
  8. Sum numbers involving length of objects

Ordinal Numbers

  1. Use first, second, up to tenth
  2. Use symbols 1st, 2nd, 3rd, up to 10th
  3. Use before, after and between to tell position
  4. Use left, right and next to
  5. Find the number in the number list (numerical ordinal terms)
  6. Find the number in the number list (word ordinal terms)
  7. Find and compare two numbers in the number list
  8. Find and add two numbers in the number list
  9. Find and get the difference from two numbers in the number list

Numbers Up to 20

  1. Count to 20 in numbers
  2. Count to 20 in words
  3. Make a ten and count on
  4. Count the number of objects in a given picture
  5. Use place value charts to show numbers to 20
  6. Use place value to compare two numbers within 20
  7. Use place value to compare three numbers within 20
  8. Find a number more than another number
  9. Find a number less than another number
  10. Concept of more-than using pictorial representation
  11. Concept of less-than using pictorial representation
  12. Find number just-before or just-after another number
  13. Find number greater than or smaller than another number
  14. Order numbers within 20 by making number patterns

Addition Within 20

  1. Add by counting on
  2. Add two 1-digit numbers by making 10
  3. Add 1-digit and 2-digit numbers
  4. Solve one-step word problems involving addition
  5. One-step addition problem involving the total quantity after an event

Subtraction Within 20

  1. Subtract by counting back
  2. Subtract from ones only
  3. Subtract to get 10 first
  4. Subtract from 10 first
  5. Solve one-step word problems involving subtraction
  6. One-step subtraction problem involving the final quantity after an event
  7. One-step subtraction problem to find the age difference between two persons

Picture Graphs

  1. Interpret data in picture graphs
  2. Describe the data presented in a picture graph using ‘most’, ‘least’, ‘greatest’, ‘smallest’, ‘as much as’, and ‘as many as’
  3. Find sum using data given in a picture graph
  4. Find the sum of particular objects using data given in a picture graph

Numbers Up to 100

  1. Count to 40 in numbers
  2. Write numbers to 40 in words
  3. Count the number of objects in a given picture
  4. Use place value charts to show numbers to 40
  5. Compare two numbers within 40
  6. Compare three numbers within 40
  7. Concept of more-than using pictorial representation
  8. Concept of less-than using pictorial representation
  9. Find number just-before or just-after another number
  10. Find number greater than or smaller than another number
  11. Find the missing number given a number pattern
  12. Count to 100 in tens
  13. Count to 100 in tens and ones
  14. Use place value charts to show numbers up to 100
  15. Compare numbers within 100 when the tens are different
  16. Compare numbers within 100 when the tens are equal
  17. Find missing numbers in pattern by adding or subtracting
  18. Find number just-before or just-after another number
  19. Identify the greatest or the smallest number from a given number list
  20. Identify the greatest or the smallest number from a given number list, and find the final value after one addition.
  21. Identify the greatest or the smallest number from a given number list, and find the final value after one subtraction
  22. Identify the greatest or the smallest number from a given number list and find the difference

Addition & Subtraction Within 100

  1. Addition without regrouping
  2. Addition with regrouping
  3. Subtraction without regrouping
  4. Subtraction with regrouping
  5. Add three 1-digit numbers within 40
  6. One-step addition problem involving the total quantity after an event
  7. One-step subtraction problem involving the final quantity after an event
  8. One-step subtraction problem to find the age difference between two persons
  9. Add ones to 2-digit numbers within 100 without regrouping
  10. Add tens to 2-digit numbers within 100
  11. Add 2-digit numbers within 100 without regrouping
  12. Add 2-digit numbers within 100 with regrouping
  13. Subtract ones from 2-digit numbers without regrouping
  14. Subtract tens from 2-digit numbers
  15. Subtract 2-digit numbers without regrouping
  16. Subtract 2-digit numbers with regrouping
  17. One-step addition problem involving the total quantity after an event
  18. One-step subtraction problem involving the final quantity after an event
  19. One-step subtraction problem to find the age difference between two persons

Length

  1. Compare height – tall and short
  2. Compare length – long and short
  3. Compare the lengths of two items
  4. Use the terms tallest, longest, and shortest
  5. Compare the lengths of three items
  6. Measure length using common objects
  7. Measure length using different objects
  8. Measure items in units
  9. Find the total length of two items
  10. Find the difference between two items

Multiplication

  1. Multiplication as repeated addition
  2. Write multiplication sentences
  3. Multiplication within 40
  4. Solve word problems involving multiplication within 40
  5. Find the product of two numbers using the term groups
  6. One-step multiplication problem to find quantity for an item for one person

Division

  1. Divide by sharing
  2. Divide by grouping
  3. Division within 20
  4. Solve word problems involving division within 20
  5. Find the quotient of two numbers using the term groups
  6. One-step division problem to find quantity for item each person gets after sharing equally

Time

  1. Tell time to the hour
  2. Tell time to the half hour
  3. Appropriateness of events at different times of the day

Money

  1. Recognise coins and notes of different denominations
  2. Count amount of money in cents up to $1
  3. Count amount of money in dollars up to $100
  4. Match a coin of one denomination to an equivalent set of coins of another denomination
  5. Match a note of one denomination to an equivalent set of notes of another denomination
  6. Compare amounts of money
  7. Use combination of coins to buy things
  8. Solve word problems involving adding and subtracting money in dollars only or in cents only
  9. One-step addition problem involving cents
  10. One-step addition problem involving dollars
  11. One-step subtraction problem to find the amount difference (in dollars) between two persons