"Understanding Calculator" Understanding greater numbers PPT courseware

Description

"Understanding Calculator" Understanding greater numbers PPT courseware

teaching objectives

1. Experience the process of understanding a calculator and using it to perform calculations.

2. Master the operating steps of using a calculator and be able to use a calculator to perform calculations.

3. Be interested in using calculators to calculate and experience the convenience, speed and accuracy of calculator calculations.

calculator

1. Tell me what you know about calculators?

2. How to use the calculator?

Electronic calculator (calculator for short) has the characteristics of fast calculation, easy operation, and small size.

Use a calculator to calculate 5040+1073.

Steps

①Press the ON/CE key

②Press numeric key 5040

③Press + key

④Press the number key 1073

⑤Press = key to record the result

Use a calculator to calculate.

6098+593 7204-426

3145＋2436 9307-3528

87×24 972÷31

practice

1. Which computer is expensive and how much does it cost? (calculate using calculator)

2. The per capita income of rural residents nationwide in 2010 and 2011 is as follows:

How much did the price increase in 2011 compared to 2010?

6977-5919＝1058 (yuan)

Answer: The price in 2011 increased by 1,058 yuan compared with 2010.

3. (1) Xiaoqiang’s family has 5 people. His salary income in October is as follows:

How much is Xiaoqiang's family's total income this month? How much is the average price per person?

2394+1780+3920+2746＝10840 (yuan)

10840÷5＝2168 (yuan)

Answer: The total income of Xiaoqiang’s family this month is 10,840 yuan, with an average of 2,168 yuan per person.

(2) The following are the main items and the amount of money consumed by Xiaoqiang’s family last month.

Under normal circumstances, how much money will Xiaoqiang’s family have left this month?

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For more information about the PPT courseware "Understanding Calculator and Understanding Larger Numbers", please click the "Understanding Calculator and Understanding Larger Numbers" ppt tag.

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File Info

Update Time: 2024-10-02

This template belongs to Mathematics courseware Hebei Education Edition Fourth Grade Mathematics Volume 1 industry PPT template

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