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## Grade 2 Hong Kong School Math Subtract Two One-Digit Numbers

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Master this topic as part of

*Subtraction* 1.1. Counting

1.2.1. Comparing Numbers

1.2.2. Ordering Numbers

1.3. Forming Numbers

1.4. Even and Odd

1.5.1. Successor of a Number

1.5.2. Predecessor of a Number

1.6.1. Face Values

1.6.2. Place Values

1.7. Numbers on Abacus

1.11. Skip Counting

1.11.1. Skip Counting by 2

1.11.2. Skip Counting by 3

1.11.3. Skip Counting by 4

1.11.4. Skip Counting by 5

1.11.5. Skip Counting by 6

1.11.6. Skip Counting by 7

1.11.7. Skip Counting by 8

1.11.8. Skip Counting by 9

1.11.9. Skip Counting by 10

1.12. Expanded Form of Numbers

2. Addition

2.3.1. Add Two Two-Digit Numbers

2.3.2.1. Order Property of Addition

2.3.2.2. Addition Property of Zero

2.3.3. Addition Using 10 x 10 Grid

2.3.4. Add Multiples of 10

2.3.5. Related Addition Facts

2.3.6. Balancing Addition Sentences

2.3.9. Add Two Three-Digit Numbers

2.3.10. Add Three Two-Digit Numbers

2.3.11. Addition Word Problems

2.3.11.1. Word Problems: Add Two One-Digit Numbers

2.3.11.2. Word Problems: Add Two Two-Digit Numbers

3. Subtraction

3.4.2. Related Subtraction Facts

3.4.3. Subtract Multiples of 10

3.4.5.1. Subtraction Property of Zero

3.4.5.2. Subtraction Property of One

3.4.5.3. Subtraction by Itself

3.4.6. Subtraction Word Problems

5. Division

6. Measurement

6.1.1. Identify - Long or Short

6.1.2. Identify - Tall or Short

6.1.3. Units of Length

6.1.4. Measure Using a Ruler

6.1.5.1. Addition of Lengths

6.1.5.1.1. Addition of Length in Meter or Centimeter

6.1.5.1.2. Addition of Length in Meter and Centimeter

6.1.5.2. Subtraction of Lengths

6.1.5.2.1. Subtraction of Length in Meter or Centimeter

6.1.6. Word Problems

6.1.6.1. Word Problems on Addition of Lengths

6.2.1. Identify - Light or Heavy

6.2.2. Unit of Weight

6.2.4.1. Addition of Weight

6.2.4.1.1. Addition of Weight in Kilogram or Gram

6.2.4.1.2. Addition of Weight in Kilogram and Gram

6.2.4.2. Subtraction of Weight

6.2.4.2.1. Subtraction of Weight in Kilogram or Gram

6.2.4.2.2. Subtraction of Weight in Kilogram and Gram

6.3.1. Identify - More or Less

6.3.2. Units of Capacity

6.3.3. Measure Using a Vessel

6.3.4.1. Addition of Capacity

6.3.4.1.1. Addition of Capacity in Liter or Milliliter

6.3.4.1.2. Addition of Capacity in Liter and Milliliter

6.3.4.2. Subtraction of Capacity

7. Geometry

7.1. Line

7.1.1. Types of Lines

7.1.1.1. Straight and Curved Lines

7.1.2. Using a Ruler

7.8.2. Solid Shapes Around Us

8. Time

8.3. Clock

8.3.3. Days of the Week

8.3.3.1. Today, Tomorrow, and Yesterday

8.3.4. Months of the Year

8.3.5. Reading a Calendar

8.3.5.1. Seasons of the Year

8.3.5.2. Writing Dates

9. Patterns