| Category | Format | Size |
|---|---|---|
| Hebei Education Edition Third Grade Mathematics Volume 1 | pptx | 6 MB |
"Multiplying whole tens and whole hundreds by one digit" Multiplying two and three digits by one digit PPT courseware
Description
"Multiplying whole tens and whole hundreds by one digit" Multiplying two and three digits by one digit PPT courseware
teaching objectives
1. Combined with specific examples, experience the process of independently exploring the oral calculation method of multiplying whole tens and whole hundreds by one digit.
2. Master the oral arithmetic method of multiplying whole tens and whole hundreds by one digit, and be able to perform oral arithmetic skillfully.
3. Be able to actively participate in mathematics activities, feel the connection between mathematics and life, and gain successful experience in solving problems through oral arithmetic.
review review
Oral calculation
4×3＝ 5×6＝ 3×8＝
7×8＝ 4×6＝ 6×7＝
Lele Bookstore has newly arrived 300 books of "Health Tips".
What did you learn from the above situation?
(1) 4 packs were sold in the first week. How many copies were sold in total?
20＋20＋20+20＝80（本）
20×4=80 (book)
20+20=40 (book)
40+40=80 (book)
(2) How much did 80 copies of "Health Tips" cost in total?
80×6＝480 (yuan)
(3) If all 300 copies of "Health Tips" are sold, how much yuan can they be sold for?
300×6=1800 (yuan)
In conclusion
Oral calculation method for multiplying whole tens and whole hundreds by a single digit: first multiply the number before zero of a whole ten or a whole hundred by a single digit. After calculating the product, look at how many zeros there are at the end of the multiplier. Just add a few 0s to the end of the product.
practice
1. Oral calculation.
2. How many meters did Qiangqiang and Mingming each run?
Qiangqiang: 400×4=1600 (meters)
Obviously: 400×3=1200 (meters)
3. The weight of a sika deer is 30 kilograms.
(1) How many kilograms does this tiger weigh?
30×5=150 (kg)
(2) How many kilograms does this tiger weigh more than this small sika deer?
150-30=120 (kg)
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For more information about the PPT courseware "Two or three digits multiplied by a single digit and a whole hundred by a single digit", please click on the "Two or three digits multiplied by a single digit ppt multiplied by a whole ten digits by a single digit" ppt tag.
"Multiplying tens and whole hundreds by one digit" Multiplying two and three digits by one digit PPT courseware 2:
"Multiplying whole tens and whole hundreds by one digit" PPT courseware for multiplying two and three digits by one digit 2 Key points of learning and difficulty: Master the calculation method of oral calculation of whole tens and whole hundreds by one digit. Difficulty: Understand the oral arithmetic of tens and hundreds. Multiply a whole ten number by a single digit 203 = 23..
"Multiplying whole tens and whole hundreds by one digit" Multiplying two and three digits by one digit Flash animation courseware:
"Multiplying whole tens and whole hundreds by one digit" Flash animation courseware for multiplying two and three digits by one digit. This courseware belongs to the second unit of the third grade mathematics volume of Hebei Education Edition. It is a teaching material for multiplying two and three digits by one digit. Flash animation courseware for multiplying tens to hundreds by one digit, the content is vivid,...
File Info
Update Time: 2024-06-30
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