The video tutorial introduces the concept of using near doubles to simplify addition problems. It begins with an explanation of the technique, followed by several examples demonstrating how to apply near doubles to various addition problems. The tutorial progresses to more advanced examples, showing how the method can be used with larger numbers. The video concludes with a summary of the technique, reinforcing the learning objectives.

What is the main concept introduced in the video to help with quick addition?

• Near doubles

• Subtraction

• Division

• Multiplication

How does the video suggest simplifying the addition of 5 and 6?

• By multiplying 5 and 6

• By subtracting 1 from 11

• By thinking of double 6 plus 1

• By thinking of double 5 plus 1

What is double 5 according to the video?

• 9

• 12

• 10

• 11

What is the result of adding 4 and 5 using near doubles?

• 8

• 9

• 10

• 11

What is double 4 as mentioned in the video?

• 6

• 7

• 8

• 9

How is the addition of 3 and 4 simplified using near doubles?

• Double 5 minus 1

• Double 3 plus 1

• Double 4 plus 1

• Double 2 plus 2

What is double 3 according to the video?

• 8

• 7

• 6

• 5

What is the result of adding 9 and 10 using near doubles?

• 18

• 19

• 20

• 21

What is double 9 as mentioned in the video?

• 19

• 18

• 16

• 17

How is the addition of 6 and 7 simplified using near doubles?

• Double 5 plus 2

• Double 7 plus 1

• Double 8 minus 1

• Double 6 plus 1