"Subtracting two-digit numbers from two-digit numbers orally" Addition and subtraction of two- and three-digit numbers PPT courseware 2

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"Subtracting two-digit numbers from two-digit numbers orally" Addition and subtraction of two- and three-digit numbers PPT courseware 2

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"Subtracting two-digit numbers from two-digit numbers orally" Addition and subtraction of two- and three-digit numbers PPT courseware 2

1. Look at the formula and tell the number

26+30= 66+3=

48+20= 28-9=

59-10=

Can you help them design a boat ride? (Two flights share one boat)

Class 2 (1) and Class 2 (2) 23+31=

Class 2 (3) and Class 2 (4) 32+39=

Class 2 (1) and Class 2 (3) 23+32=

Class 2 (2) and Class 2 (4) 31+39=

Class 2 (1) and Class 2 (4) 23+39=

Class 2 (3) and Class 2 (2) 32+31=

By calculation we get the result:

Option One:

23+31=54

32+39=71

Option II:

23+32=55

31+39=70

1. The teacher wants to buy an encyclopedia of birds and a picture of flowers and birds. How much does it cost in total?

2. I obviously want to spend the least amount of money to buy three different souvenirs. How much is the minimum amount?

Keywords: Two- and three-digit addition and subtraction courseware PPT, two-digit subtraction two-digit oral arithmetic courseware PPT, Jiangsu Education Edition second-grade mathematics PPT courseware download, second-grade mathematics slide courseware download, two- and three-digit numbers Addition and subtraction PPT courseware download, two-digit subtraction two-digit oral arithmetic PPT courseware download, .PPT format

For more information about the PPT courseware "Addition and Subtraction of Two- and Three-Digit Numbers, Oral Calculation of Two-Digit Subtraction by Two-Digit Numbers", please click the Addition and Subtraction of Two- and Three-Digit Numbers ppt Two-Digit Subtraction of Two-Number Oral Calculations ppt tag.

"Subtracting two-digit numbers from two-digit numbers orally" PPT courseware for addition and subtraction of two- and three-digit numbers:

"Subtracting two-digit numbers from two-digit numbers" PPT courseware for addition and subtraction of two- and three-digit numbers 1. Review 1. Look at the calculation formula and say that the number is 43+30=73. First, say that the number is in the tens, and then calculate 67-orally. 35= 94-38= 31+26= 72-53= 84-16= 80-45= ... ... ... Guess..

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Update Time: 2024-09-29

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"Subtracting two-digit numbers from two-digit numbers orally" Addition and subtraction of two- and three-digit numbers PPT courseware 2
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