1, first look at the first two digits of the dividend (the three digits in the question are the dividend) (see if there are enough points), (if there are enough points, the quotient is set on the second digit of the dividend; That is, the second place from left to right); If the first two digits are not divided enough (actually, the first two digits are less than the divisor), it depends on the first three digits (actually, the third digit is agreed).

2. The remainder of each division must be less than the divisor.

Dividing three digits by two digits is a difficult point in learning. Sometimes, if you are not sure what the quotient is, it is actually a process of trial and error.

Tool materials:

Pens and notebooks

operational approach

0 1

Take the following figure 126÷ 18 as an example. The divisor is a two-digit number. Look at the two digits to the left of the dividend first. 12 is less than 18, so the quotient is a single digit.

02

Let 18 be 20 trial quotients, then the quotients can be 6.

03

When the quotient is 6, the remainder is 18, which is as big as the divisor. At this time, the business is small.

04

Raise the quotient again and try to change it to 7. The result is just right.

05

Try another question, 638÷22, take 22 as 20, try quotient 3, and the result is big.

06

Lower it a little bit and change it to 2, which is just right.

07

Continue to exercise, the result is 29.

Special tips

Division is actually not a difficult knowledge, but it needs trial and error.

Strengthen oral arithmetic practice

However, whether it is the teacher's teaching or the students' learning here, I always feel that my persuasion is not strong enough and my speech is not thorough enough. Besides, mathematics comes from life, so we should be able to understand the arithmetic algorithms with examples in life, pay attention to the combination of numbers and shapes, and be able to change from variables to numbers.