"Dividing three-digit numbers by whole ten numbers" Dividing three-digit numbers by two-digit numbers PPT courseware

Description

"Dividing three-digit numbers by whole ten numbers" Dividing three-digit numbers by two-digit numbers PPT courseware

teaching objectives

1. Combined with specific examples, experience the process of estimating and learning to divide three-digit numbers by whole tens.

2. Master the written calculation method of dividing three-digit numbers by whole tens, and be able to perform calculations correctly.

3. Actively participate in mathematics learning activities and experience the application of mathematics in daily life.

Teachers and students of Hongxing Primary School visited the Aerospace Museum. The museum stipulates that the number of visitors in each group shall not exceed 60 people.

At least how many groups of teachers and students of the school should visit?

523÷60＝8 (batch)……43 (person)

Answer: All teachers and students of the school need to visit in at least 9 groups.

In conclusion

1. There are at most several divisors in the dividend, and the quotient is the number. The quotient should be written in the ones place.

2. The remainder is smaller than the divisor.

practice

1. Use a computer to type a 466-word article. Who records faster?

method one

466÷60＝7(points)……46(pieces)

Answer: A little girl needs more than 7 minutes, and a little boy only needs 7 minutes, so the little boy records faster.

Method Two

466÷7＝66 (pieces)……4 (pieces)

Answer: The little boy can record at least 66 words per minute, and the little girl can only record 60 words per minute, so the little boy can record faster.

2. Uncle Wang’s orchard harvested 358 kilograms of apples, 270 kilograms of pears, and 196 kilograms of plums. Do the math: How many cartons are needed to pack these types of fruits?

Apple: 358÷40=8 (pieces)...38 (kg)

Pears: 270÷30＝9 (pieces)

Plums: 196÷20=9 (pieces)...16 (kg)

3. Teacher Li brings 500 yuan to buy sweatshirts for the school basketball team members. How many pieces can he buy at most? How many yuan is left?

500÷80＝6(pieces)……20(yuan)

Answer: I can buy up to 6 pieces, and I still have 20 yuan left.

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For more information about the PPT courseware "Dividing three digits by two digits and dividing three digits by whole tens", please click the "Dividing three digits by two digits ppt" Three digits divided by whole tens ppt tag.

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Update Time: 2024-07-01

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

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