"Adding and subtracting two-digit numbers with two-digit numbers" Addition and subtraction within 100 PPT courseware 2

Description

"Adding and subtracting two-digit numbers with two-digit numbers" Addition and subtraction within 100 PPT courseware 2

teaching objectives

1. Let students use learning tools to explore the method of written calculation, experience the process of exploring the method of adding and subtracting two-digit numbers (without carry, without backing), and be able to perform calculations correctly using the vertical form.

2. Improve students’ ability to independently explore and solve problems independently, and further experience the connection between mathematics and life, enhance mathematical awareness, and cultivate thinking skills and cooperative learning attitude.

1. I can count:

9－5＝ 8－1＝

3+6＝ 5+4＝

20＋70＝ 30－10＝

50＋20＝ 35＋20＝

47-5＝ 72+6＝

98－50＝ 65－30＝

2. I will fill it out.

⑴There are ( ) tens and ( ) ones in 43.

⑵ ( ) tens and ( ) ones add up to 31.

⑶4 tens minus 3 tens is ( ) tens.

⑷ The sum of 4 tens and 3 tens is ( ) tens.

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For more information about the PPT courseware "Addition and subtraction of two-digit numbers within 100, plus and subtraction of two-digit numbers", please click the Addition and subtraction of two-digit numbers within 100 PPT, plus and subtraction of two-digit numbers PPT tag.

"Oral Calculation of Adding and Subtracting Two-Digit Numbers" PPT on addition and subtraction within 10,000:

"Oral Calculation of Adding and Subtracting Two-Digit Numbers" PPT on Addition and Subtraction within Ten Thousand Part One: Learning Objectives 1. To enable students to master the calculation method of adding and subtracting two-digit figures orally and to perform oral calculations correctly. Cultivate students' oral arithmetic skills and problem-solving abilities. ..

"Adding and subtracting two-digit numbers with two-digit numbers" PPT courseware for addition and subtraction within 100:

"Adding and subtracting two-digit numbers with two-digit numbers" PPT courseware on addition and subtraction within 100. What should you pay attention to when writing vertical expressions? What should we pay attention to when calculating the alignment of the same digits? Counting from the ones digit... ... ... give it a try 4 3 - 3 1 = The children are so smart, they can already use vertical...

File Info

Update Time: 2024-09-09

This template belongs to Mathematics courseware Jiangsu Education Edition First Grade Mathematics Volume 2 industry PPT template

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