"Integer Exponential Powers" Fraction PPT download

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"Integer Exponential Powers" Fraction PPT download

Part One: Knowledge Review

What are the operational properties of positive integer exponential powers?

think

Some larger numbers are suitable for expressing in scientific notation.

The speed of light is approximately meters/second

The radius of the sun is approximately kilometers

The world population in 2010 was approximately

Can you express the following numbers less than 1 in scientific notation?

0.000 01

0.000 025 7

0.000 000 0257

The integer part of a can only be 1~9

Integer exponent power PPT, part 2 content: exploration

0.00001=

0.000 025 7=2.57×0.000 01=

0.000 000 0257=2.57×0.000 000 01=

Can you find the relationship between the exponent and the number of zeros?

How many 0s are there, the exponent is negative.

Note: When counting the number of 0s, start counting from the left and end at the first number that is not 0.

Integer exponent powers PPT, the third part: examples

Express each of the following numbers in scientific notation:

(1) 0.3; (2) -0.000 78; (3) 0.000 020 09.

The following numbers are expressed in scientific notation. Write the original numbers:

practise

Express each of the following numbers in scientific notation:

(1) 0.000 01; (2) 0.001 2;

(3) 0.000 000 345; (4) 0.000 000 010 8．

Express the following numbers in scientific notation:

0.000 000 001, 0.001 2,

0.000 000 345, -0.000 03,

0.000 000 010 8, 3780 000

Integer exponent power PPT, part 4: summary

What did we learn in this lesson?

1. Negative integer powers raised to powers:

When n is a positive integer,

That is to say,

2. Integer exponents raised to powers:

3． Express numbers less than 1 in scientific notation:

0.00001=

0.000 025 7=2.57×0.000 01=

0.000 000 0257=2.57×0.000 000 01=

Features: There are several 0s, and the exponent is a negative number.

Keywords: Free download of PPT courseware for the first volume of eighth-grade mathematics from the People's Education Press, download of integer exponent powers PPT, download of fractions PPT, .PPT format;

For more information about the "Fractional Integer Exponential Powers" PPT courseware, please click the Fractional PPT Integer Exponential Powers PPT tag.

"Integer Exponential Powers" Fraction PPT teaching courseware:

"Integer Exponent Powers" Fractional PPT Teaching Courseware Part One Content: Learning Objectives 1. Understand and master the operational properties of negative integer exponent powers. (Key Points) 2. Understand the properties of integer exponent powers and apply them to solve practical problems. (Difficulty) Review old knowledge and talk about it...

"Integer Exponential Powers" Fraction PPT:

"Integer Exponential Powers" Fraction PPT Part One Content: [Learning Objectives] 1. Master the operational properties of integer exponential powers. 2. Perform simple exponentiation operations within a range of integers. [Learning Focus] Master the operational properties of integer exponent powers, especially negative integer exponent powers..

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Update Time: 2024-09-11

This template belongs to Mathematics courseware People's Education Press Eighth Grade Mathematics Volume 1 industry PPT template

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