Understanding Number Sequences

The video tutorial explains how to determine the next number in a sequence after 79, 80, and 81 using manipulatives. It starts by introducing the problem and using physical objects to represent the numbers. The teacher demonstrates how to transition from 79 to 80 by adding one more unit and then converting ten ones into a ten to show 80. The process continues to show how adding another unit results in 81, and finally, the next number, 82, is identified.

What is the first number in the sequence discussed in the video?

• 80

• 81

• 78

• 79

What number do you get when you add one to 79?

• 82

• 81

• 80

• 78

How does the teacher simplify counting when transitioning from 79 to 80?

• By using a number line

• By using a calculator

• By grouping ones into tens

• By writing the numbers down

What is the number after 81 in the sequence?

• 83

• 80

• 81

• 82

What is the sequence of numbers discussed in the video?

• 81, 82, 83

• 80, 81, 82

• 79, 80, 81

• 78, 79, 80