Podcast
Questions and Answers
If there are 4 groups of 3 stars, which of the following repeated addition sentences is correct?
If there are 4 groups of 3 stars, which of the following repeated addition sentences is correct?
- 3 + 3 + 3 + 3 = 15
- 3 + 3 + 3 + 3 = 10
- 3 + 3 + 3 + 3 = 9
- 3 + 3 + 3 + 3 = 12 (correct)
What is the multiplication equation representing 4 rows of hearts with 3 hearts in each row?
What is the multiplication equation representing 4 rows of hearts with 3 hearts in each row?
- 5 x 3 = 15
- 4 x 3 = 12 (correct)
- 4 x 2 = 8
- 3 x 4 = 10
If Judy arranges marbles into 3 rows of 6, how many marbles does she collect altogether?
If Judy arranges marbles into 3 rows of 6, how many marbles does she collect altogether?
- 15
- 9
- 18 (correct)
- 12
Which multiplication equation describes an array of 5 rows with 3 squares in each row?
Which multiplication equation describes an array of 5 rows with 3 squares in each row?
What is the result of the multiplication sentence if each group contains 2 stars and there are 3 groups?
What is the result of the multiplication sentence if each group contains 2 stars and there are 3 groups?
Flashcards
Repeated Addition
Repeated Addition
Adding the same number multiple times. Example: 3 + 3 + 3 = 9.
Multiplication
Multiplication
A shortcut for repeated addition. Example: 3 x 3 = 9.
Array
Array
A rectangular arrangement of objects in equal rows and columns. Example: 3 rows of 4 flowers.
Multiplication Equation
Multiplication Equation
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Rows in an Array
Rows in an Array
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Study Notes
Topic: Repeated Addition and Multiplication
- Representing groups of objects with repeated addition and multiplication is crucial.
- Four groups of three stars can be represented as 3 + 3 + 3 + 3 = 12. This is equivalent to 4 x 3 = 12.
- A picture showing 2 + 2 + 2 = 6 is visually presented, which can also be represented as 3 x 2 = 6.
Topic - Arrays and Multiplication
- An array is an arrangement of objects in rows and columns.
- A problem describes 4 rows of hearts. If each row has 7 hearts, the total is 4 x 7 hearts.
- If there's an array of unknown hearts, the number present in each row is vital to determine the multiplication equation.
- A multiplication equation is needed to represent a visual array of objects. A problem presents an array and requires writing the correct multiplication equation to match.
- A multiplication equation describes an array with 3 rows and 6 columns as 3 x 6 = 18. This array can be drawn to show 18 total items.
- An example shows an array of 5 rows and 3 columns. Students are expected to draw and represent this array visually and write the multiplication equation correctly (5 x 3 = 15)
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