"Calculation with Calculator" PPT courseware for understanding numbers above ten thousand

Description

"Calculation with Calculator" PPT courseware for understanding numbers above ten thousand

teaching objectives

In this class, we mainly learn to use calculators to calculate. Students must combine the common electronic calculators in our daily lives to master the composition of calculators and the functions of each key in the calculator, understand the development history of calculators, and be able to apply calculations The machine calculates the addition, subtraction, multiplication and division operations we learned.

Electronic calculator components

Electronic calculators generally consist of power supply and switch, display screen, keyboard and internal circuits. ON/C is the power-on key. Pressing this key turns on the power of the calculator and clears the screen.

OFF is the shutdown button. Press this button to cut off the power.

+-×÷ is the four arithmetic operation keys, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are numeric keys, and C.CE is the clear data key.

passion show

57＋26＝82－49＝

12×27＝351÷13＝

36＋47＝ 41－18＝

26×28＝ 544÷16＝

1. Tell me what keys are there on the electronic calculator and what are their functions? (The classmates tell each other, and then the whole class communicates.)

2. Use a calculator to calculate and see who can calculate correctly and quickly.

587+296 958-97 679+597

698+56 769+485 958-599

3. I report the number and you calculate. Working together at the same table, one student talks about multi-digit addition and subtraction formulas, while the other student uses a calculator to calculate. Two students take turns.

I learn and I am happy

What did you learn in this class today?

What should we pay attention to when calculating with a calculator?

Based on what you know about calculators, can you imagine the development trend of calculators in the future?

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For more information about the PPT courseware "Using a calculator to calculate numbers above 10,000 ppt", please click on the ppt tag "Using a calculator to calculate numbers above 10,000 ppt".

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"Calculation with a Calculator" PPT Courseware for Understanding Numbers Above Ten Thousands 2:

"Calculation with a Calculator" Understanding Numbers Above Ten Thousands PPT Courseware 2 Teaching Objectives In this lesson we will mainly learn to use a calculator to calculate. Students must first understand the functions of each key in the calculator and be able to accurately calculate related exercises. Try it 38+27=65 3018=..

File Info

Update Time: 2024-10-15

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

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