"Picking Festival" PPT courseware

"Picking Festival" PPT courseware
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Qingdao Edition Third Grade Mathematics Volume 1 pptx 6 MB
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"Picking Festival" PPT courseware

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"Picking Festival" PPT courseware

1. Situation introduction

There are 60 baskets in total.

18 families came, and each family received 3 baskets.

How many baskets are left?

There were 48 people on the bus.

There are two minibuses, each with 26 people on board.

How many people were in the three cars?

What mathematical information do you know from the picture?

What questions can you ask based on this information?

2. Cooperation and exploration

There are 60 baskets in total.

18 families came, and each family received 3 baskets.

How many baskets are left?

Can you answer it? Give it a try.

The relationship between the total count, the divided count, and the remaining count is:

Total number - divided number = remaining number

Once you know the total number, you must first find the number of divided parts.

First find out how many baskets have been divided.

18×3=54 (only)

Please ask how many baskets are left.

60-54=6 (only)

give it a try

At the school sports meeting, 14 students participated in the rope skipping competition. There were 8 groups participating in the relay race, with 4 people in each group. How many more people participate in the relay race than jump rope?

The number of people in the relay race - the number of people in the skipping rope = the number of people in the relay race who are more than the number of people in the skipping rope

Step by step formula:

4×8=32 (name)

32-14=8 (name)

Comprehensive formula:

4×8-14

=32-14

=8 (name)

Communication: In the comprehensive calculation, what do you calculate first?

Discussion: "60-18×3" and "4×8-14" both count first and then what?

3. Independent practice

1. First tell the order of operations for each question, and then calculate.

68-12×3 84-15×4 26×3-47

=68-36 =84-60 =78-47

=32 =24 =31

2. Milk candy: 16 yuan per kilogram

Chocolate: 98 yuan per kilogram

Fruit candy: 13 yuan per kilogram

(1) How much does it cost to buy 2 kilograms of toffee and 1 kilogram of chocolate?

(2) How much more does it cost to buy 1 kilogram of chocolate than to buy 3 kilograms of fruit candies?

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"Picking Festival" PPT courseware 2:

"Picking Festival" PPT courseware 2 How many more boxes of grapes did mom pick than Yang Yang? How many boxes of grapes did Mom and Dad pick in total? Students will complete it by themselves first, and then discuss it in the group. Remember to help each other and grow together! Mom picked many more boxes than Yang Yang...

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Update Time: 2024-10-22

This template belongs to Mathematics courseware Qingdao Edition Third Grade Mathematics Volume 1 industry PPT template

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