"Beautiful Street Scene" PPT Courseware 4

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"Beautiful Street Scene" PPT Courseware 4

1. Situation introduction

The daily rent for an advertising light is 32 yuan, and there are 29 identical advertising lights.

How much is the daily rent for advertising lights on this street?

Each tree requires 36 meters of colored light wire, and 58 trees need to be decorated.

How many meters of lanterns are needed in total?

48 light strips, each with 71 bulbs.

How many light bulbs are there in total?

What mathematical information do you know from the picture?

What questions can you ask based on this information?

2. Cooperation and exploration

How much is the daily rent for advertising lights on this street?

32 × 29 = (yuan)

32 × 30 = 960

32 × 1 = 32

960 – 32 = 928

Answer: The daily rent for advertising lights on this street is 928 yuan.

3. Independent practice

1. Think about it: How to calculate two-digit times two-digit numbers?

2. A sharp eye distinguishes right from wrong.

3. On average, each carriage can accommodate 98 people.

There are 15 carriages.

How many people can this train carry?

98 × 15 = 1470 (people)

Answer: This train can carry 1,470 people.

4. On average, each tree can harvest 80 kilograms of pears, and there are 12 trees in total.

(1) How many kilograms of pears can be harvested in total?

80 × 12 = 960 (kg)

Answer: A total of 960 kilograms of pears can be harvested.

(2) If one box is packed per 5 kilograms, how many cartons should be prepared?

960 ÷ 5 = 192(pieces)

Answer: We need to prepare 192 cartons.

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Update Time: 2024-09-22

This template belongs to Mathematics courseware Qingdao Edition Third Grade Mathematics Volume 2 industry PPT template

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