Understanding 0.9 Repeating Equals 1

Understanding 0.9 Repeating Equals 1

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Hard

Created by

Liam Anderson

FREE Resource

The video tutorial demonstrates that 1 equals 0.9 repeating using algebraic equations. It begins by defining x as 0.9 repeating, then multiplies both sides by 10 to form a new equation. By subtracting the original equation from the new one, the tutorial shows that 9x equals 9. Dividing both sides by 9, it concludes that x equals 1, proving that 1 equals 0.9 repeating.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial question posed in the video?

Is 0.9 repeating equal to 0.8?

Can 0.9 repeating be less than 1?

Is 0.9 repeating greater than 1?

Does 1 equal 0.9 repeating?

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of x defined as in the video?

0.8 repeating

0.9 repeating

10

1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is performed on both sides of the equation to form a new equation?

Subtraction

Addition

Multiplication by 10

Division by 10

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of subtracting the two equations?

x equals 1

x equals 10

x equals 9

x equals 0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What conclusion is reached at the end of the video?

0.9 repeating equals 1

0.9 repeating is greater than 1

0.9 repeating is less than 1

0.9 repeating equals 0