Finding Missing Numbers in a Multiplication Table

Mr. D introduces Topic 5-3, focusing on finding missing numbers in multiplication tables. Unlike complete tables, these puzzles have missing factors and products, requiring students to deduce missing elements using known multiplication patterns. The video guides students through solving three tables, emphasizing the need for at least two known parts of a multiplication equation to find the third. Students are encouraged to pause and attempt solving independently before reviewing solutions.

What topic was skipped because it was previously covered?

• Topic 5-4

• Topic 5-1

• Topic 5-2

• Topic 4-3

What is necessary to solve for a missing number in the multiplication table?

• At least one product

• At least one known factor

• At least two parts of the equation

• At least two known factors

What does a factor of 7 and a product of 42 suggest about the missing number?

• 5

• 6

• 7

• 8

If 8 times a number equals 32, what is the number?

• 6

• 5

• 4

• 3

What is the product of 7 times 3?

• 20

• 23

• 21

• 22

What multiplication result is needed to find the factor when the product is 72 and one factor is 8?

• 10

• 9

• 8

• 7

What is the missing factor if the product is 54 and one known factor is 9?

• 8

• 6

• 5

• 7

What should be multiplied with 8 to get a product of 16?

• 3

• 2

• 1

• 4

What is the result of multiplying 9 by 7?

• 72

• 63

• 81

• 56

What factor multiplied by 9 gives a product of 0?

• 1

• None of the above

• 9

• 0