Counting the Number of Triangles and Rectangles in a Given Figure | Problems, Online Practice, Tests, Worksheets, Quizzes, Assignments | Grade 4 | USA School Math

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Grade 4
Geometry
Polygons
Counting the Number of Triangles and Rectangles in a Given Figure

Grade 4

1. Numbers (5-Digit and 6-Digit)

1.1. Representation of Large Numbers

1.1.1. Write Large Numbers by Separating the Periods

1.1.2. Write Numerals as Number Names

1.1.3. Write Number Names as Numerals

1.2. Forming Numbers

1.3. Place Value and Face Value of a Digit in a Numeral

1.4. Expanded Form of a Number

1.5. Successor and Predecessor

1.5.1. Successor of a Number

1.5.2. Predecessor of a Number

1.6. Compare and Order Numbers

1.6.1. Compare Numbers With Different Number of Digits

1.6.2. Compare Numbers With Same Number of Digits

2. Roman Numerals (up to 100)

2.1. Introduction to Roman Numerals

2.2. Write Roman Numerals for Hindu-Arabic Numerals

2.3. Write Hindu-Arabic Numerals for Roman Numerals

2.4. Meaningless Roman Numerals

2.5. Compare Roman Numerals

2.6. Operations on Roman Numerals

2.7. Word Problems on Basic Arithmetic Using Roman Numerals

3. Addition

3.1. Addend and Sum

3.2. Add Five-Digit Numbers

3.2.1. Add Two Five-Digit Numbers (Without Carrying)

3.2.2. Add Three or More Five-Digit Numbers (Without Carrying)

3.2.3. Add Two Five-Digit Numbers (With Carrying)

3.2.4. Add Three or More Five-Digit Numbers (With Carrying)

3.3. Add Six-Digit Numbers

3.3.1. Add Two Six-Digit Numbers (Without Carrying)

3.3.2. Add Three or More Six-Digit Numbers (Without Carrying)

3.3.3. Add Two Six-Digit Numbers (With Carrying)

3.3.4. Add Three or More Six-Digit Numbers (With Carrying)

3.4. Find the Missing Digit While Adding Numbers

3.5. Addition - Properties and Facts

3.5.1. Order/Commutative Property of Addition

3.5.2. Grouping/Associative Property of Addition

3.5.3. Addition Property of Zero

3.6. Addition Word Problems

3.6.1. Word Problems: Add Five-Digit Numbers

3.6.2. Word Problems: Add Six-Digit Numbers

4. Subtraction

4.1. Minuend, Subtrahend and Difference

4.2. Subtract Five-Digit Numbers

4.2.1. Subtract Five-Digit Numbers (Without Borrowing)

4.2.2. Subtract Five-Digit Numbers (With Borrowing)

4.3. Subtract Six-Digit Numbers

4.3.1. Subtract Six-Digit Numbers (Without Borrowing)

4.3.2. Subtract Six-Digit Numbers (With Borrowing)

4.4. Subtraction - Properties and Facts

4.4.1. Subtraction Property of Zero

4.4.2. Subtraction of One

4.4.3. Subtraction by Itself

4.5. Subtraction Word Problems

4.5.1. Word Problems: Subtract Five-Digit Numbers

4.5.2. Word Problems: Subtract Six-Digit Numbers

5. Addition and Subtraction

5.1. Add and Subtract 2-Digit and 3-Digit Numbers

5.2. Balance Sentences - Addition and Subtraction (up to 999)

5.3. Write Number Sentence (For the Given Story)

5.5. Word Problems Involving Both Addition and Subtraction

6. Multiplication

6.1. Multiplicand, Multiplier and Product

6.2. Multiplication - Properties and Facts

6.2.1. Order Property of Multiplication

6.2.2. Grouping Property of Multiplication

6.2.3. Multiplicative Property of One

6.2.4. Multiplicative Property of Zero

6.2.5. Distributive Property of Multiplication over Addition

6.2.6. Identify the Property of Multiplication

6.3. Multiplication by Multiples of 10

6.3.1. Multiplication by 10, 100, and 1000

6.3.2. Multiplication by a Multiple of 10, 100, and 1000

6.3.3. Mixed Problems on Multiplication by Multiples of 10

6.4. Multiplication by 2-Digit Numbers

6.4.1. Multiplication: 3-Digit by 2-Digit

6.4.2. Multiplication: 4-Digit by 2-Digit

6.5. Multiplication by 3-Digit Numbers

6.5.1. Multiplication: 3-Digit by 3-Digit

6.5.2. Multiplication: 4-Digit by 3-Digit

6.6. Word Problems on Multiplication

6.6.1. Word Problems: Multiply a 3-Digit number by a 2-Digit Number

6.6.2. Word Problems: Multiply a 4-Digit number by a 2-Digit Number

6.6.3. Word Problems: Multiply a 3-Digit number by a 3-Digit Number

6.6.4. Word Problems: Multiply a 4-Digit number by a 3-Digit Number

7. Division

7.1. Divider, Quotient, Dividend, and Remainder

7.2. Divide by 10, 100, 1000 etc

7.3. Divide by Multiples of 10, 100, 1000 etc

7.4. Long Division

7.4.1. Divide a Number by a 2-digit Number (No Remainder)

7.4.2. Divide a Number by a 3-digit Number (No Remainder)

7.4.3. Divide a Number by a 2-digit Number (With Remainder)

7.4.4. Divide a Number by a 3-digit Number (With Remainder)

7.5. Division - Properties and Facts

7.5.1. Division by One

7.5.2. Division by the Number Itself

7.5.3. Division by Zero

7.5.4. Dividing Zero by a Number

7.6. Word Problems on Division

7.6.1. Word Problems - Division by a 2-Digit Number

7.6.2. Word Problems - Division by a 3-Digit Number

8. Word Problems: Mixed Operations

9. Factors and Multiples

9.1. Factors and Multiples of a Number

9.1.1. Factors

9.1.1.1. Finding Factors of a Number

9.1.1.2. HCF (Highest Common Factor)

9.1.2. Multiples

9.1.2.1. Finding Multiples of a Number

9.1.2.2. LCM (Lowest Common Multiple)

9.1.3. Properties of Factors and Multiples

9.2. Types of Numbers

9.2.1. Odd and Even Numbers

9.2.1.1. Even Numbers

9.2.1.2. Odd Numbers

9.2.2. Prime and Composite Numbers

9.2.2.1. Composite Numbers

9.2.2.2. Prime Numbers

9.2.2.3. Properties of Composite and Prime

9.3. Tests of Divisibility

9.3.1. Test Divisibility by 2

9.3.2. Test Divisibility by 3

9.3.3. Test Divisibility by 5

9.3.4. Test Divisibility by 6

9.3.5. Test Divisibility by 9

9.3.6. Test Divisibility by 10

9.4. Prime Factors of a Number by Factor Tree Method

10. Patterns

10.1. Rule for the Pattern

10.2. Find the Sum of Consecutive Numbers

10.3. Find the Missing Term in the Pattern

11. Rounding Numbers

11.1. Rounding Off Numbers

11.1.1. Rounding Off to the Nearest Ten

11.1.2. Rounding Off to the Nearest Hundred

11.1.3. Rounding Off to the Nearest Thousand

11.2. Estimating Sum

11.3. Estimating Difference

11.4. Estimating Products

12. Fractions

12.1. Fraction as a Part of a Whole

12.2. Fractional Numbers and Fractions

12.3. Numerator and Denominator of a Fraction

12.4. Division as Fraction

12.5. Fraction as Division

12.6. Fractions on a Number Line

12.7. Equivalent Fractions

12.8. Comparison of Fractions

12.8.1. Compare and Order Fractions with Same Denominators

12.8.2. Compare and Order Fractions with Same Numerators

12.9. Like and Unlike Fractions

12.10. Unit Fraction

12.11. Proper, Improper and Mixed fractions

12.11.1. Understand the Meaning of Proper, Improper and Mixed Fractions

12.11.2. Convert Improper Fractions to Mixed Fractions

12.11.3. Convert Mixed Fractions to Improper Fractions

12.12. Addition and Subtraction of Fractions

12.12.1. Addition of Like Fractions

12.12.2. Subtraction of Like Fractions

12.13. Word Problems on Fractions

12.13.1. Word Problems on Forming Fractions

12.13.2. Word Problems on Addition of Like Fractions

12.13.3. Word Problems on Subtraction of Like Fractions

13. Decimals

13.1. Conversions

13.1.1. Converting Decimals into Fractions(With Denominators as Power of 10)

13.1.2. Converting Fractions(With Denominators as Power of 10) into Decimals

13.2. Pictorial Representation of a Decimal Number

13.3. Number Names of Decimal Numbers

13.4. Place Value of the Digits of a Decimal Number

13.5. Expanded Form of Decimal Numbers

14. Money

14.1. Introduction to Currency

14.3. Express Money in Figures

14.4. Conversion of Money

14.4.2. Convert Dollars and Cents into Cents

14.4.4. Convert Cents into Dollars

14.5. Addition and Subtraction of Money

14.5.1. Addition of Amounts in Dollars and Cents

14.5.2. Subtraction of Amounts in Dollars and Cents

14.6. Multiplication and Division of Money

14.6.1. Multiplication of Money by a Whole Number

14.7. Word Problems on Money

14.7.1. Word Problems on Addition of Money

14.7.2. Word Problems on Subtraction of Money

14.7.3. Word Problems on Addition and Subtraction of Money

14.7.4. Word Problems on Multiplication of Money by a Whole Number

14.7.5. Word Problems on Division of Money by a Whole Number

14.7.6. Word Problems on Money Involving a Mixed Operations on Money

15. Measurement

15.1. Measurement of Length

15.1.1. Conversion of Metric Units of Length

15.1.1.1. Conversion from Higher to Lower Units of Length

15.1.1.2. Conversion from Mixed Units to Lower Units of Length

15.1.1.3. Conversion from Lower to Higher Units of Length

15.1.2. Addition and Subtraction of Lengths

15.1.2.1. Addition of Lengths

15.1.2.1.1. Addition of Lengths in Meters and Centimeters

15.1.2.1.2. Addition of Lengths in Kilometers and Meters

15.1.2.2. Subtraction of Lengths

15.1.2.2.1. Subtraction of Lengths in Meters and Centimeters

15.1.2.2.2. Subtraction of Lengths in Kilometers and Meters

15.1.3. Word Problems on Length

15.1.3.1. Word Problems on Addition of Lengths

15.1.3.2. Word Problems on Subtraction of Lengths

15.2. Measurement of Weight

15.2.1. Conversion of Metric Units of Weight

15.2.1.1. Conversion from Higher to Lower Units of Weight

15.2.1.2. Conversion from Mixed Units to Lower Units of Weight

15.2.1.3. Conversion from Lower to Higher Units of Weight

15.2.2. Addition and Subtraction of Weights

15.2.2.1. Addition of Weights

15.2.2.1.1. Addition of Weights in Grams and Milligrams

15.2.2.1.2. Addition of Weights in Kilograms and Grams

15.2.2.2. Subtraction of Weights

15.2.2.2.1. Subtraction of Weights in Grams and Milligrams

15.2.2.2.2. Subtraction of Weights in Kilograms and Grams

15.2.3. Word Problems on Weights

15.2.3.1. Word Problems on Addition of Weights

15.2.3.2. Word Problems on Subtraction of Weights

15.3. Measurement of Capacity

15.3.1. Conversion of Metric Units of Capacity

15.3.1.1. Conversion from Higher to Lower Units of Capacity

15.3.1.2. Conversion from Mixed Units to Lower Units of Capacity

15.3.1.3. Conversion from Lower to Higher Units of Capacity

15.3.2. Addition and Subtraction of Capacity

15.3.2.1. Addition of Capacity in Liters and Milliliters

15.3.2.2. Subtraction of Capacity in Liters and Milliliters

15.3.3. Word Problems on Capacity

15.3.3.1. Word Problems on Addition of Capacity

15.3.3.2. Word Problems on Subtraction of Capacity

16. Unitary Method

16.1. Word problems Using Unitary Method Involving Multiplication

16.2. Word problems Using Unitary Method Involving Division

16.3. Word problems Using Unitary Method Involving Both Multiplication and Division

17. Geometry

17.1. Understand the Basic Terms in Geometry (Point, Line, Line Segment, Ray, and Plane)

17.2. Using a Ruler

17.3. Identify and Count the Number of Line Segments

17.4. Types of Lines

17.4.1. Straight and Curved Lines

17.4.2. Horizontal, Vertical, Curved, and Slant Lines

17.4.3. Open and Closed Shapes

17.5. Polygons

17.5.1. Understanding Polygons

17.5.2. Name the Polygon

17.5.3. Introduction to Plane Shapes (Rectangle, Square, Circle, and Triangle)

17.5.4. Count the Vertices and Sides of a Plane Shape

17.5.5. Compare Vertices and Sides of Different Plane Shapes

17.5.6. Counting the Number of Triangles and Rectangles in a Given Figure

17.6. Circle

17.6.1. Terms Related to a Circle

17.6.2. Relationship Between Radius and Diameter of a Circle

18. Perimeter of Rectilinear Figures

18.1. Basic Definition of Perimeter

18.2. Perimeter of Triangle

18.3. Perimeter of a Rectangle

18.4. Perimeter of a Square

18.5. Perimeter of a Other Geometric Figures

19. Solid Shapes (3-D shapes)

19.1. Identify Different Solid Shapes (Cuboid, Cube, Cone, Cylinder, Sphere, Prism, and Pyramids)

19.2. Solid Shapes Around Us

19.3. Vertices, Edges and Faces of Solid Objects

19.4. Net of a 3-D Shape

19.5. Tangrams

19.6. Tiling Geometrical Shapes

20. Symmetry

20.1. Introduction to Symmetry

20.2. Identifying Mirror Halves

20.3. Symmetry Around Us

20.4. Symmetry in Geometric Figures

20.5. Symmetry in Alphabets

20.6. Symmetry in Numerals

21. Time

21.1. Clock

21.1.1. Basic Facts About Clocks and Time

21.1.2. Measuring Time

21.1.2.1. Reading Time on the Clock (Minute Hand is at 3, 6, or 9)

21.1.2.2. Reading Time on the Clock (Minute hand is at any number)

21.1.2.3. Word Problems on Reading Time

21.1.2.4. Relate Days, Hours, Minutes, and Seconds

21.1.3. 24-Hour Clock Time

21.1.3.1. Understanding 24-Hour Clock Time

21.1.3.2. Conversion from 24-Hour Clock Time to 12-Hour Clock Time

21.1.3.3. Conversion from 12-Hour Clock Time to 24-Hour Clock Time

21.1.4. Use of 'AM' and 'PM'

21.1.5. Addition and Subtraction of Time

21.1.5.1. Addition of Time

21.1.5.2. Subtraction of Time

21.1.5.3. Word Problems on Time

21.2. Calendar

21.2.1. Days of the Week

21.2.2. Months of the Year

21.2.3. Ordinary, Leap, and Century Years

21.2.4. Writing Dates

21.2.5. Word Problems on Calendar

22. Data Handling

22.1. Basic Definition of Data

22.2. Pictographs

22.2.1. Introduction to Pictograph

22.2.2. Drawing Pictographs

22.2.3. Interpreting Pictographs

22.3. Bar Graphs

22.3.1. Drawing Bar Graphs

22.3.2. Interpreting Bar Graphs

Grade 4 USA School Math Counting the Number of Triangles and Rectangles in a Given Figure

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