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Category | Format | Size |
---|---|---|
Hebei Education Edition Sixth Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Initial Understanding of Positive Numbers, Negative Numbers and Integers" PPT
Part One: Review old knowledge
Write the temperature below.
minus 40 degrees writing: -40℃
36 degrees above zero Writing: 36℃
minus 24 degrees writing: -24℃
17 degrees above zero Writing: 17℃
New knowledge exploration
Read the temperature on the thermometer below.
These are thermometers that measure air temperature.
-10℃ and -5℃ are both temperatures lower than 0℃.
-10 and -5 are called negative numbers, they are all numbers smaller than 0.
"-" is a negative sign.
10 degrees Celsius above zero can be written as: +10℃, +10℃ is a positive number.
"+" is a positive sign. When writing numbers, "+" can be omitted. Positive numbers are all greater than 0.
Preliminary understanding of positive numbers, negative numbers and integers PPT, Part 2: Consolidation exercises
1. Fill in the appropriate numbers in the brackets.
2. Arrange the following numbers in order from largest to smallest.
-68 16 0 -33 3 -8
16>3>0>-8>-33>-68
Keywords: Free download of Hebei Education Edition mathematics PPT courseware for sixth grade volume 2, preliminary understanding of positive numbers, negative numbers and integers PPT download, .PPT format;
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File Info
Update Time: 2024-11-21
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