"Addition with Discontinuous Carry" PPT courseware download

Description

"Addition with Discontinuous Carry" PPT courseware download, 12 pages in total.

Introduction before class

Oral calculation.

197+101≈ 271+302≈ 299+203≈

learning target

Knowledge and skills: To enable students to further understand the rules of addition calculation and be able to write three-digit non-consecutive carry additions.

Process and methods: Through group cooperation and exploration, we will experience the formation process of the calculation method of three-digit discontinuous carry addition, and experience the methods and strategies of induction and generalization.

Emotional attitudes and values: Create learning situations such as independent inquiry, cooperation and communication for students, cultivate students' ability to independently explore, and enhance students' awareness of fairness.

New knowledge exploration

Preview:

1. Read Example 1 on page 37 of the textbook carefully and answer the following questions.

Wetland birds ( ) species, reptiles ( ) species. How many kinds are there in total?

The written calculation method of adding three-digit numbers to two or three-digit numbers with discontinuous carry:

1. ( ) Align, add from ( );

2. When the numbers in the ( ) digit add up to ten, 1 must be added to the ( ) digit.

Class exercises

1. Calculate vertically.

719+252= 365+825=

2. True or false questions, “√” for correct and “×” for incorrect.

(1) When doing addition by pen, the digits must be aligned. ( )

(2) If you add a three-digit number to a three-digit number, the sum must be a three-digit number. ( )

(3) The hundreds place of the sum of 445+293 is 7. ( )

Keywords: free download of discontinuous carry addition PPT courseware, PPT download of addition and subtraction within ten thousand, .PPT format;

For more information about the PPT courseware "Addition and Subtraction Within Ten Thousand, Addition with Discontinuous Carry", please click the Addition and Subtraction Within Ten Thousand PPT, Addition with Discontinuous Carry PPT tag.

"Adding three digits to two or three digits with discontinuous carry" Addition and subtraction of two or three digits PPT courseware:

"Adding three digits to two or three digits with discontinuous carry" Addition and subtraction of two or three digits PPT courseware. The students made a batch of leaf stickers and selected 142 for display in the window, with 86 left. How many paintings were produced in total? Add two or three digits to a three-digit number and add the same...

"Addition with Discontinuous Carry" PPT courseware:

"Addition with Discontinuous Carry" PPT courseware 1. Oral arithmetic practice 50＋70＝ 30＋600＝ 30＋300＝ 90＋20＝ 40＋50＝ 0＋500＝ 2． Find the sum of 38 plus 25. Two-digit addition by writing: ①Align the same digits; ②Add from the ones digit; ③The ones digit reaches ten..

File Info

Update Time: 2024-10-05

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

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