1.30÷6=5, pronounced ().
30 divided by 6 equals 5B.30 divided by 5 equals 6.
There are four () in 2.20.
A. 10B.4C.5D. 16
3. Among the following formulas, the formula with the largest quotient is ().
A. 12÷3B.36÷6C.20÷4D.24÷6
There is a pile of apples, more than 20, less than 40, with as many copies as each. There may be () apples in this pile.
A.24B.25C.36D.35
5. The students who participated in the dance team of Class 2, Grade 2 stood in 5 rows, with 6 people in each row, including 9 boys. How many girls are there? It is represented by formula ().
A.5+6-9
C.5×6-9 D.5+6-9
Fill in the blanks.
1.30 ÷ 5=6
2. Fill the numbers on the card below into the division formula you have learned.
3.6 mouth = mouth, which means 6 cocks, each () is only divided into one group, which can be divided into such () groups.
4. If □ +□ ※+※ = 21,+□+※+※ = 27, then □ = (), ※ = ()
5.
Multiplication formula: () X()= (), () X()= ()
Division formula: () ⊙ () = (), () ⊙ () = ()
Third, application.
1. One table tennis 2 yuan and four badminton 12 yuan, which is cheaper? How much cheaper?
2. the price of drinks in the supermarket is reduced. How much is it to buy 3 bottles of fresh orange juice and 6 bottles of 6 yuan?
3. A book has 36 pages. Xiaoming reads six pages a day. How many days can he finish it? If you finish reading in 4 days, how many pages do you read on average every day?
Extension problem
1. (Ask questions) There is a string of beads, arranged in the following order. The nineteenth bead is () color.
2. (Information Question) 35 students are playing games on the playground. They can be divided into groups of four or five people. How to arrange no surplus?
3. (innovative question) 12 children play table tennis, and every three people give four table tennis. How many ping-pong balls does a * * * need?
4. (Information Question) One day it was raining heavily at noon. Someone asked Feifei, "Will the sun come out in 36 hours?" Feifei said, "That's impossible." Yao Ming said, "I'm sure the sun won't come out in another 36 hours." Children, who do you think is right? Why?
5. (Open-ended question) Fill in different numbers in ○ in the figure below, so that the sum of three numbers on each straight line is equal to 10.
Reference answer:
—、 1.A2.C3.B4.B，C5。 B
Second, 1.30÷5 =6.
Divider quotient
2.20÷5=420÷4=5
12÷4=3 12÷3=4
18÷3=6 18÷6=3
3.6÷2=32,34.6,3
5.3×5= 15, 5×3= 15,
15÷3=5, 15÷5=3
Fourth, 1. Table tennis is cheap. Each one is cheap 1 yuan.
2. 12 yuan
Tip: Method 1: Find the unit price first, and then the total amount. 6÷3×6= 12 (yuan)
Method 2: Six bottles contain several three bottles, that is, several 6 yuan.
6 bottles ÷3 bottles ×6 yuan = 12 (yuan)
3.36÷6=6 (days), 36÷4=9 (pages)
develop
1. White (last name)
Tip: Through observation, we can find that the arrangement of beads is regular. According to the order of "1 black, 2 white, 1 flower", every four are divided into one group. Because 4×5=20, it means that there are 20 * * * in 5 groups. Nineteenth should be counted forward. Or three slaves (4x4 = 16).
2. Analysis: Every five people are divided into one group, which is exactly divided into seven groups. But every four people are divided into groups, which cannot be accurately divided into integer groups.
3. 12÷3×4= 16 (pieces)
The sun will never come out, because it is night.
Tip: It rains at noon, and it will be noon in 24 hours. Adding 12 hours equals 36 hours, which is exactly night. So the sun will never come out.
Tip: There are four ways to divide 10 into three different sums:10 =1+2+7 =1+3+6 =1+4+5 = 2+3+5.