"Cube Root" Real Numbers PPT Courseware 5

Description

"Cube Root" Real Numbers PPT Courseware 5

1. What is a cube root?

If the cube of a number is equal to a, then the number is called the cube root or cubic root of a.

2. The cube root of a positive number is a ______, the cube root of a negative number is a _______, the cube root of 0 is ____; the cube root is its own number is ______. The square root is its own number is __ arithmetic square root is itself The number is______.

Similarities and Differences between Cube Root and Square Root

Similar points: ①One of the square roots and cube roots of 0 is 0

② Square roots and cube roots are both the results of the square root.

Differences: ① Different definitions ② Different numbers

③Different expression methods ④Different value ranges of radicand numbers

judge

1. Any rational number has a cube root, which is either positive or negative.

2. Is the cube root of a non-negative number still a non-negative number?

3. If the square root of a number is the same as its cube root, then the number is 1

4.a cannot be a negative number

5. There are two cube roots of a number, and they are opposites of each other.

6. The square root of the cube root of 27 is

practise

1. Estimate the size of the cube root of 68 in ( )

A. Between 2 and 3 B. Between 3 and 4

C. Between 4 and 5 D. Between 5 and 6

2. A cube crystal tile has a volume of 100cm³ and its edge length is approximately ( )

A. Between 4�~5�

B. Between 5cm~6cm

C. Between 6�~7�

D. Between 7�~8�

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"Cube Root" PPT courseware 5:

"Cube Root" PPT Courseware 5 Create Situation Import New Lesson Now we are going to make a cube with a volume of 8cm. How long should its edges be? How did you know? What are the lengths of the edges of a cube with a volume of 27cm and a volume of 1000cm? Introduction to self-study..

"Cube Root" PPT courseware 4:

"Cube Root" PPT Courseware 4 Fill in the blanks (1)( )3＝1 (2)( )3＝-1 (3)( )3＝8 (4)( )3＝-8 (5)( )3＝27 ( 6)( )3＝-27 (7)( )3＝64 (8)( )3＝-64 (9)( )3＝0 Think about making a square wooden box so that its volume is...

"Cube Root" PPT courseware 3:

"Cube Root" PPT Courseware 3 Observation and Thinking ( )3=-64 ( )3=1000 ( )3=-1000 ( )3= 0 ( )3=-8/27 Generally, if the cube of a number x is equal to a , that is, x3=a, then this number x is called the cube root of a (also called the cubic root). ..

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Update Time: 2024-10-19

This template belongs to Mathematics courseware People's Education Press Seventh Grade Mathematics Volume 2 industry PPT template

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