"Similar Mixed Operations Without Parentheses" PPT courseware download

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"Similar Mixed Operations Without Parentheses" PPT courseware download

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Description

"Similar Mixed Operations Without Parentheses" PPT courseware download, 17 pages in total.

learning target

Master the order of mixed operations of addition, subtraction, multiplication and division, and be able to perform calculations correctly. (emphasis)

Understand the order of mixed operations of addition, subtraction, multiplication and division, and further master multiplication and division in tables. (difficulty)

Review import

23+17-8= 50-13+26=

Explore new knowledge

Knowledge points: Operation order of sibling mixed operations without parentheses

There were 53 people in the reading room in the morning, 24 people left at noon, and 38 people came in the afternoon. How many people were in the reading room in the afternoon?

Method 1: Step-by-step calculation

①There were 53 people in the morning.

②24 people left at noon.

③Another 38 people came in the afternoon.

Method 2: Comprehensive formula calculation

53-24+38

Calculations like 53-24+38 are comprehensive calculations. Do you still remember the order of operations used to calculate?

Consolidation exercises

1. (Selected from textbook P50 T1)

2. (Selected from textbook P50 T2)

3. (Selected from textbook P50 T3) Is the following calculation correct? If it's not right, correct it.

Class summary

The order of operations for mixed operations of the same level without parentheses: In an equation without parentheses, only additions and subtractions or only multiplications and divisions must be calculated in order from left to right.

Keywords: Free download of mixed operation PPT courseware of the same level without brackets, mixed operation PPT download, .PPT format;

For more information about the PPT courseware "Mixed Operations at the Same Level without Parentheses, Mixed Operations at the Same Level", please click on the Mixed Operations PPT Mixed Operations at the Same Level without Parentheses PPT tag.

File Info

Update Time: 2024-11-20

This template belongs to Mathematics courseware People's Education Press Second Grade Mathematics Volume 2 industry PPT template

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"Similar Mixed Operations Without Parentheses" PPT courseware download
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