"Written Dividing Three Digits by One Digit" PPT courseware for dividing two and three digits by one digit

Description

"Written Dividing Three Digits by One Digit" PPT courseware for dividing two and three digits by one digit

teaching objectives

1. Combined with specific examples, experience the process of independently exploring the three-digit written calculation method of dividing three-digit numbers by one-digit quotient.

2. Be able to correctly calculate the division of three-digit numbers divided by one-digit quotient of three-digit numbers, and be able to use multiplication to check the division.

3. Understand the principle of using multiplication to check division, and develop the habit of checking calculations.

Uncle Li picked a cart of apples from the orchard and sold them in the market.

Observe the situation diagram and tell me what you found?

435÷3＝____(kilogram)

give it a try

Use vertical calculations and check.

595÷5 648÷3 936÷4

In conclusion

1. The written calculation method of dividing a three-digit number by a one-digit number:

(1) Divide from the highest digit of the dividend, and write the quotient of the division in the hundreds place. When the hundreds place of the dividend is not enough to divide, the number in the hundreds place and the number in the tens place are combined to calculate, and the first place of the quotient is written in the tens digit; (2) If there is a remainder in any digit, add the remainder in that digit to the number in the next digit and continue dividing; (3) The remainder of each division must be smaller than the divisor.

2. How to check division:

Multiply the divisor by the quotient to see if the product is equal to the dividend. If it is equal to the dividend, it means the quotient is correct, otherwise the quotient is wrong.

practice

1. Children in a certain place held a "Fly Our Ideals" activity on National Day and released a total of 660 balloons. Each child releases 4 balloons. How many children are needed to release these balloons at one time?

660÷4＝165 (pieces)

Answer: 165 children are needed.

2. The swallow parents caught 432 pests in 2 days and fed them to their children. How many pests did they catch per day on average?

432÷2＝216(items)

Answer: On average, 216 pests are caught every day.

3. How many kilograms does each carton contain on average?

150÷5＝30(kg)

Answer: On average, each carton contains 30 kilograms.

4. Use vertical calculation and check the calculation.

678÷6 738÷6 642÷3

752÷4 856÷4 924÷7

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"Written division of three-digit numbers by one-digit numbers, division with remainder" PPT courseware for dividing two or three-digit numbers by one-digit numbers:

"Written division of three-digit numbers by one-digit numbers, division with remainder" PPT courseware teaching objectives of dividing two and three-digit numbers by one-digit numbers 1. Combined with specific examples, experience independent exploration of the quotient of dividing three-digit numbers by one-digit numbers by two The process of calculating numbers with remainders. 2. Ability to correctly calculate three digits..

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Update Time: 2024-09-09

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

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