| Category | Format | Size |
|---|---|---|
| Qingdao Edition Fourth Grade Mathematics Volume 1 | pptx | 6 MB |
"Harvest Season" PPT Courseware 2
Description
"Harvest Season" PPT Courseware 2
What is the maximum number that can be filled in the brackets?
60×( )� 262
80×( )� 453
70×( )� 492
To buy 21 copies, you have to pay 84 yuan
What math problem can you ask? How to list the equation?
How much does it cost to buy a complete math review book?
84÷21＝
feedback exercise
What are the single digits of the divisors in these three questions? How much do you consider them to be commercially viable? How do you calculate it?
68÷34
64÷21
92÷23
Summary: When the ones digit of the divisor is 1, 2, 3, or 4, round off the ones digit of the divisor and treat it as an integer to test the quotient. Multiply the quotient and the divisor. If the remainder is smaller than the divisor, , indicating that the tested quotient is appropriate.
Summary: It would be more convenient to test the quotient by treating the divisor as an integer close to it. 39 is closest to 40. Treat 39 as 40 to test the quotient. In this way, 196÷39 is converted into 196÷40 and the quotient is 4. Because the divisor is 39, not 40, therefore, whether the quotient is appropriate depends on the multiplication of the quotient and the divisor. You can first lightly write "4" in the units digit of the quotient. If it does not work, adjust the quotient to 5.
Take a guess!
How many words can be filled in □?
Quotient is one digit Quotient is two digit
□72÷28 □72÷28
( ) ( )
Operation:
1. Extension: Through today's study, can the division of four-digit numbers divided by two-digit numbers and the divisor be a three-digit number be calculated? Such as: 4527÷56 1276÷364
2. Make up 5 division formulas in which the divisor is a two-digit number (the dividend is a two-digit or three-digit number) and calculated in writing.
Keywords: Harvest Season teaching courseware, Qingdao edition fourth grade mathematics volume PPT courseware download, fourth grade mathematics slide courseware download, Harvest Season PPT courseware download, .PPT format;
For more information about the "Harvest Season" PPT courseware, please click the "Harvest Season" ppt tag.
"Harvest Season" PPT courseware 11:
"Harvest Season" PPT Courseware 11 New Year's Day is coming soon, and the art group will decorate the classroom with 12 square paintings of the same size. If you want to stick a rectangle, how many ways are there? Group cooperation: Use the 12 small squares in the school bag to represent the 12 pictures, and do it...
"Harvest Season" PPT courseware 10:
"Harvest Season" PPT Courseware 10 Teaching Objectives In this lesson, we mainly study the nature of the invariant quotient. Students must understand and master the law of the invariant quotient based on the actual example of monkeys dividing peaches, and be able to skillfully apply the invariant quotient. Solve practical problems regularly. Monkey King ..
"Harvest Season" PPT courseware 9:
"Harvest Season" PPT Courseware 9 Teaching Objectives 1. Understand the concepts of factors and multiples, and be able to find the factors and multiples of a number; 2. Know the characteristics of the factors and multiples of this number, and be able to solve related practical problems . 3. Cultivate students’ willingness to cooperate..
File Info
Update Time: 2024-07-02
This template belongs to Mathematics courseware Qingdao Edition Fourth Grade Mathematics Volume 1 industry PPT template
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