Mastering Trickier Multiplication Facts

The video tutorial covers strategies for tackling difficult multiplication facts. It begins by discussing common challenges in multiplication and introduces methods to simplify these problems. The first strategy involves breaking down unknown multiplication facts into known ones, using examples like 6x7 and 8x8. The tutorial then presents a hand trick for multiplying by nine, which involves counting fingers to find the answer. Finally, it explains a method for multiplying by twelve by leveraging the knowledge of tens. These strategies aim to make multiplication easier and more intuitive.

What is the first step when you don't remember a multiplication fact?

• Skip the question

• Find a known related fact

• Use a calculator

• Guess the answer

Tags

CCSS.3.OA.A.1

How can you find the product of 6 times 7 if you know 6 times 5?

• Find the product of 6 times 2 and add it to 6 times 5

• Subtract 5 from the product of 6 times 5

• Multiply 6 times 5 by 2

• Add 5 to the product of 6 times 5

Tags

CCSS.3.OA.B.5

What is the purpose of breaking down a multiplication fact into known facts?

• To simplify the calculation

• To use a calculator more effectively

• To avoid learning multiplication

• To make it more complicated

Tags

CCSS.3.OA.C.7

What is 8 times 8 using the strategy discussed?

• 80

• 72

• 64

• 56

Tags

CCSS.3.OA.A.1

What is the product of 8 times 2?

• 10

• 14

• 16

• 18

Tags

CCSS.3.OA.C.7

How can you use your hands to find 9 times 4?

• Multiplying 9 by 4 directly

• Counting fingers up to 4

• Using a calculator

• Folding the fourth finger and counting the sides

Tags

CCSS.3.OA.A.1

What is the result of 9 times 9 using the nines trick?

• 99

• 72

• 81

• 90

Tags

CCSS.3.OA.A.1

Using the nines trick, what is 9 times 5?

• 35

• 40

• 45

• 50

Tags

CCSS.3.OA.A.1

How do you solve 12 times 8 using the strategy provided?

• Add 10 times 8 and 2 times 8

• Multiply 12 by 8 directly

• Divide 12 by 8 and then multiply by 10

• Subtract 10 times 8 from 12 times 8

Tags

CCSS.5.NBT.B.5

What is the result of 10 times 8 plus 2 times 8?

• 96

• 104

• 88

• 86

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2