Exploring Array Multiplication Techniques

This video tutorial from Moomoomath and Science explains how to multiply using arrays. It begins by defining rows and columns, emphasizing that rows are horizontal and columns are vertical. The video then provides two examples of multiplying numbers using arrays, demonstrating how to count rows and columns to form multiplication equations. The tutorial concludes with a summary and encourages viewers to subscribe for more educational content.

What direction does a row extend in an array?

• Horizontally

• Diagonally

• Vertically

• Circularly

Tags

CCSS.3.OA.A.1

Which direction do columns extend in an array?

• Up and down

• In a circular motion

• Left to right

• Right to left

Tags

CCSS.3.OA.A.1

What is the first step in multiplying using an array?

• Counting the rows

• Understanding the difference between rows and columns

• Writing an equation

• Counting the columns

Tags

CCSS.3.OA.A.1

How many columns are in the first example array?

• Five

• Three

• Two

• Four

Tags

CCSS.2.OA.C.4

What is the product of 2 rows and 4 columns?

• 10

• 12

• 8

• 6

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CCSS.2.OA.C.3

How do you check your work after writing an equation for an array?

• By counting each element in the array

• By subtracting the numbers

• By adding the numbers

• By dividing the numbers

Tags

CCSS.2.OA.C.4

In the second example, how many rows does the array have?

• 5

• 2

• 3

• 4

Tags

CCSS.2.OA.C.4

What is the result of multiplying 4 rows by 3 columns?

• 12

• 7

• 14

• 10

Tags

CCSS.3.OA.A.1

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