"Division if the divisor is a decimal" Multiplication and division of decimals PPT courseware 2

Description

"Division if the divisor is a decimal" Multiplication and division of decimals PPT courseware 2

The decimal point of the divisor must be moved one place to the right, and the decimal point of the dividend must also be moved one place to the right. It is not necessary to remove the decimal points of both the dividend and the divisor.

The decimal point of the quotient should be aligned with the decimal point of the dividend, and the decimal point should be placed in the lower right corner of the ones digit of the quotient.

The key is to convert the divisor into an integer. The divisor must be multiplied by 100, and the dividend must also be multiplied by 100.

The decimal point of the divisor is moved two places to the right, and the decimal point of the dividend is also moved two places to the right. If there are not enough digits, add 0 to make up for it.

Group discussion and communication

How to calculate a number divided by a decimal?

1. Move the decimal point of the divisor to an integer, move the decimal point of the divisor a few places to the right, and move the decimal point of the dividend a few places to the right.

2. Calculate again according to the calculation method of dividing by an integer.

0.45÷0.6÷0.5=0.45÷0.6÷0.5

3.7÷2.5÷0.4=3.7÷2.5÷0.4

The same properties of division apply to decimal division.

Keywords: Decimal multiplication and division courseware, division by a decimal courseware, Jiangsu Education Edition fifth-grade mathematics PPT courseware download, fifth-grade mathematics slide courseware download, decimal multiplication and division PPT courseware download, division by a decimal PPT courseware Download, .PPT format;

For more information about the PPT courseware "Division with decimals, multiplication and division of decimals", please click the "Division with decimals" ppt multiplication and division of decimals ppt tag.

"Division if the divisor is a decimal" Decimal division PPT courseware 3:

"Division by a Decimal" Decimal Division PPT Courseware 3 Evaluation Reflection: 1. Fill in the blanks according to the invariant property of quotients, and explain the reasons. 4816＝ 480160＝ 48001600＝ 2. Vertical calculation 8.118＝ 2.2515＝ Calculate the following questions and tell us what you found...

"Division if the divisor is a decimal" Decimal division PPT courseware 2:

"Division by a Decimal" Decimal Division PPT Courseware 2 Oral Calculation 567＝ 4800800＝ 56070＝ 48080＝ 5600 700＝ 488＝ The dividend and divisor are multiplied or divided by the same number at the same time (except 0), and the quotient remains unchanged. The dividend and divisor are expanded simultaneously..

"Division if the divisor is a decimal" Decimal division PPT courseware:

"Division by a Decimal" Decimal Division PPT Courseware Teaching Objectives 1. Knowledge Objective: Preliminarily understand and master the calculation rules of division by a decimal. 2. Ability goal: Learn how to calculate divisions whose divisors are decimals. 3. Emotional goal: Cultivate students to emigrate...

File Info

Update Time: 2024-10-16

This template belongs to Mathematics courseware Jiangsu Education Edition Fifth Grade Mathematics Volume 1 industry PPT template

Preview