"Recycling Waste Batteries" Addition and Subtraction PPT Courseware 2

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"Recycling Waste Batteries" Addition and Subtraction PPT Courseware 2

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"Recycling Waste Batteries" Addition and Subtraction PPT Courseware 2

One winter, sixteen or seven strange patients appeared in the suburbs of Heike City, Japan. Their hands were trembling, their feet were stiff, and they cried sometimes and laughed sometimes. Later, two of them became seriously ill and died. After autopsy, the cause was poisoning caused by heavy metal substances.

Researchers found that three drinking wells where these patients lived were severely contaminated, and they also dug up more than 300 used batteries nearby. Waste batteries contain metals and waste liquids. These substances will have a direct impact on soil, water, and human health. A button-sized battery can pollute 600,000 liters of water, which is equivalent to a person's lifetime drinking volume.

1) What number is 198 more than 560?

2) 845 is 45 less than a number. What is this number?

3) A number is 278 more than 72. What is this number?

4) What number is 190 more than 420?

1. The total length of the Yellow River is 5,464 kilometers, and the Yangtze River is 836 kilometers longer than the Yellow River. How many kilometers long is the Yangtze River?

2. Li Ming's house is 480 meters south of the school, and Wang Ying's house is north of the school, which is 256 meters farther from the school than Li Ming's house. How many meters is Wang Ying's house from the school? How many meters does it take to walk from Li Ming's house to Wang Ying's house?

Addition using vertical expression

1. The same digits must be aligned, starting from the ones digit;

2. Whichever one adds up to ten, add one to the previous one.

Keywords: Recycling of waste batteries courseware PPT, Beijing Normal University version second grade mathematics PPT courseware download, second grade mathematics slide courseware download, recycling of waste batteries PPT courseware download, .PPT format

For more information about the "Add and Subtract Recycling of Waste Batteries" PPT courseware, please click the Add and Subtract ppt Recycling of Waste Batteries ppt tab.

"Recycling Waste Batteries" Addition and Subtraction PPT Courseware 3:

"Recycling Waste Batteries" Addition and Subtraction PPT Courseware 3 Learning Objectives: Learn to use vertical format to calculate addition and subtraction equations; Pay attention to the alignment of numbers when calculating in vertical format; Recycling old batteries is beneficial to environmental protection and cultivates environmental awareness. ... ... ... Waste batteries contain metal and waste liquid..

"Recycling Waste Batteries" Addition and Subtraction PPT Courseware:

"Recycling Waste Batteries" Addition and Subtraction PPT Courseware Teaching Objectives This lesson requires students to focus on learning how to calculate multi-digit addition. Especially when doing vertical calculations, be sure to pay attention to the carry problem. When you first start to do the questions When doing this, I hope that students will be careful and conscientious in order to...

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Update Time: 2024-11-25

This template belongs to Mathematics courseware Second grade mathematics of Beijing Normal University industry PPT template

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"Recycling Waste Batteries" Addition and Subtraction PPT Courseware 2
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