"Problem Solving" Decimal Division PPT Courseware 4

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"Problem Solving" Decimal Division PPT Courseware 4

(1). Xiaoqiang’s mother wants to distribute 2.5 kilograms of sesame oil into some glass bottles. Each bottle can hold up to 0.4 kilograms. How many bottles need to be prepared?

2.5÷0.4＝6.25 (pieces)

6.25≈6, I need a bottle

6 bottles can only hold 2.4 kilograms, so 7 bottles need to be prepared.

2.5÷0.4≈7 (pieces)

For questions like this, we need to use the "further method" to find the approximate value of the quotient based on the actual situation.

The one-step method - when retaining an integer, regardless of the number in the tenth place, always add one to the integer part.

(2). Aunt Wang wrapped the gift box with a 25-meter-long red ribbon. Each gift box requires a 1.5-meter-long ribbon. How many gift boxes can be packed with these red ribbons?

25÷1.5＝16.666……(pieces)

25÷1.5≈16 (pieces)

For questions like this, we need to use the "tail removal method" to find the approximate value of the quotient based on the actual situation.

The tailing method - when retaining integers, regardless of the number in the tenth place, all are removed.

1. Determine how to deal with the results of the following questions?

(1) There are 110 meters of cloth to make children's suits. Each set uses 2.3 meters of cloth. How many sets can be made?

(2) There are 110 tons of coal, and it is transported by a small truck with a load of 2.3 tons. How many trucks need to be transported?

2. There are 378 people from Xingfu Primary School going on autumn outing. Each bus is limited to 40 people. How many buses are needed?

3. It takes 60 pages of paper to bind a kind of notebook. Now there are 2800 pages of the same paper. How many such notebooks can be bound?

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For more information about "Solving Problems with Decimal Division" PPT courseware, please click on the "Solving Problems with Decimal Division ppt" tag.

"Problem Solving" PPT courseware download:

"Problem Solving" PPT courseware download Part One: New Lesson Introduction The hare and the tortoise are racing. The distance from the starting point to the end is 450 meters. Who will reach the end first? How early should I arrive? I run 5 meters per minute. I run 5 meters more per minute than the turtle. The tortoise and the hare..

"Problem Solving" PPT download:

"Problem Solving" PPT download Part 1: Concise explanation of classic questions 1) Do the math yourself: How much is the price reduction for each piece of clothing? The price of the wool sweater is reduced by 145 yuan, 525-380=145 (yuan). The price of the down jacket of 560 yuan is reduced by 162 yuan, 560-398=162 (yuan). What about the other items? ..

"Problem Solving" PPT:

Contents of the first part of "Problem Solving" PPT: Learning objectives 1. Understand the meaning of integer division; 2. Understand division with remainders; 3. Master the relationship between the various parts of division with remainders; 4. Cultivate analysis, judgment and logical reasoning Ability and ability to solve practical problems...

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Update Time: 2024-10-12

This template belongs to Mathematics courseware Western Normal University Edition Fifth Grade Mathematics Volume 1 industry PPT template

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