Hebei Education Edition Third Grade Mathematics Volume 2

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Hebei Education Edition Third Grade Mathematics Volume 2	pptx	6 MB

Hebei Education Edition Third Grade Mathematics Volume 2

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Upload Time: 2024-09-30

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"Multiplication" PPT

Part One: Knowledge Review

Oral calculation.

8×9= 9×9=

14×2= 21×3=

23×4= 21×4=

Example 1 There are 24 colored pencils in each box.

Ask your own math questions and try to solve them.

How many pencils are there in 2 boxes?

24×2=48 (branch)

How many pencils are there in 10 boxes?

24×10=240 (pieces)

Example 2 A faucet that is not tightened will drain 12 kilograms of water every day. Based on this calculation, how many kilograms of water will be wasted in these two months?

Let me first calculate how much water is wasted every month...

24×10=240 (pieces)

12×30=360 (kg)

372+360=732 (kilogram)

Let me first calculate how many days there are in 2 months, and then...

How is this "7" calculated?

Multiplication PPT, part 2: practice

Oral calculation.

40×70＝ 80×90＝

30×50＝ 60×40＝

50×60＝ 90×20＝

Calculate orally and write down the results for the following questions.

12×3= 48×5= 8×50=

12×30= 48×50= 80×50=

Keywords: Free download of Hebei Education Edition mathematics PPT courseware for third grade volume 2, multiplication PPT download, .PPT format;

For more information about the PPT courseware "Multiplying Two Digits by Two Digits", please click the Multiplying Two Digits Multiplying Two Digits ppt tag.

"Multiplication Formula" PPT:

"Multiplication Formula" PPT Part 1: Remember and calculate: (a + b)( c+ d)=ac+ad+ bd+bc Do (x + 1) (y - 1) = xy x + y - 1 1. (x+2) (x-2)= x2-2x +2x-22= x2- 4 2. (1+3a)(1-3a)= 1 - 3a +..

"Multiplication of Integers" PPT courseware:

"Multiplication of Integers" PPT Courseware Part One: Review and Thinking The basis for multiplying a monomial by a polynomial is the distributive law of multiplication to addition; how to perform multiplication operations of monomials and polynomials? ① Multiply each term of the polynomial by a monomial. ② Then...

"Multiplication of Integers" PPT:

"Multiplication of Integers" PPT Part One: Review Introduction: 1. Multiplication of powers with the same base: am.an=am+n (m,n are both integers) 2. Power of powers: (am)n=amn ( m, n are both positive integers) 3. The power of the product: (ab)n=an.bn (n is a positive integer) ....

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Update Time: 2024-09-30

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Hebei Education Edition Third Grade Mathematics Volume 2