2. Measure the length of each side of the square and mark it on the map. Think about it, what did you find through the measurement? () cm
() cm () cm
() cm
Fourth, solve practical problems.
1, a book has read 38 pages, and there are 42 pages left. How many pages are there in this book?
2. Twenty-four students line up to do exercises. If there are four people in a row, how many rows can they row?
If it is divided into three lines on average, how many people are there in each line?
□□□ =□ (person )□□□ =□ (line)
3、
4. Students are divided into three groups for cleaning, with 8 people in each group. How many people are there in a group?
If divided into four groups on average, how many people are there in each group?
5. One watermelon can squeeze 8 cups of watermelon juice, and four oranges can squeeze one cup of orange juice.
(! How many cups of watermelon juice can six watermelons squeeze out?
(2) How many cups of orange juice can 32 oranges squeeze out?
6. Pencil box 2 yuan 4-corner eraser 4-corner pencil 6-corner pencil sharpener 1 RMB 6.
(1) How much is the pencil case?
Jia Jia bought the above two kinds of stationery, and the price of one is four times that of the other. What stationery can Jia Jiake buy?
7. Cars, planes in 65 yuan? Yuan dynasty (1206- 1368)
Planes are 2 1 yuan cheaper than cars. Is 50 yuan enough to buy a plane?
8. Mingming kicked 35, and Red kicked much more than Mingming. Dongdong plays less.
Red at least kicks (). Dongdong kicks () at most.
9. The results of skipping rope in small animal competition are as follows:
first time
second time
puppy
46 times
48 times
leveret
34 times
44 times
What questions can I ask?
1, 60 plus 20 may be:
(1) More than eighty (2) More than ninety (3) More than seventy (4)70(5)80(6)90
The number of sixty plus twenty may be:
(1) More than eighty (2) More than ninety (3) More than seventy (4)70(5)80(6)90
The number of people aged 60 to 20 may be:
Twenty years old, twenty years old, twenty years old, twenty years old, twenty years old.
60 minus 20 may be:
Twenty years old, twenty years old, twenty years old, twenty years old, twenty years old.
2. Which of the following formulas has a number greater than 50?
( 1)5×9 (2)45+8 (3)70-23 (4)54÷9 (5)7×8
(6)23+32 (7)98-46 (8)30+20 (9)8 1÷9 ( 10)56-7
3. Look at the picture and fill in the blanks:
★★★★★★★★★ ★★★★★★★★★
□+□=□ □×□=□
□÷□=□ □÷□=□
These two division formulas mean: divide each ★ into equal parts, and each part is one.
It can also mean: ★, one for each person, divided into such shares.
4. Draw a line and divide the parallelogram into two figures as required:
Two triangles, one triangle and two quadrangles.
quadrilateral
Divided into quadrangles and pentagons:
Draw a line between every two points, or draw a line at most, and draw it.
The longest line segment is about centimeters, …
The shortest line segment is about centimeters,
The difference is centimeters.
6. There is a big grid and a small grid on the clock face, and each big grid has a small grid. The second hand turned a big circle and walked a small space. When an hour hand walks a big grid, it walks a big circle.
1 minute = 60 minutes = hours.
When the pointer points to about 6 o'clock,
The minute hand may point, which is an hour; It is also possible to point to this time; You can also point to it. It is time.
7. Look at the statistics: chicken ■■■■■■
Duck------------
Goose-----------
There is only one chicken. There are four chickens, one duck, two geese and one goose in Abby Mallard. Colour the □ after "Duck and Goose" above.
There are eight apples in Xiaoming's family. There are four times as many oranges as apples, and three fewer pears than apples. Please ask questions and answer them.
Problem formulation
Problem formulation
Problem formulation
I am a little painter. (7 points)
1. Draw a line 2 cm shorter than 6 cm.
2. Draw a right angle with a given point and write the names of each part of the angle.
3. Draw the symmetry axis of each figure below (only draw one).
6. I will observe and guess. (3 points)
Seven, high-quality gas stations. (13)
Statistics on the number of extracurricular interest groups in Grade Two.
Mathematics section
Composition group
Painting group
Musical instrument group
Zheng Zheng
Zheng Zheng
Right is right.
straight
group
Mathematics section
Composition group
Painting group
Musical instrument group
number of people
Math group composition group painting group musical instrument group
1, and each cell represents () individuals.
2. Group () has the largest number of people, and group () has the least number of people. What's the difference between the two groups?
3. What other questions can you ask? Please list the formula calculation.
Eight, kaleidoscope of life. Examine the questions carefully and analyze them carefully. You must not find the following question difficult.
1. Xiaoming's mother has 100 yuan. Among the following clothes, she bought a coat and a pair of trousers. How much should she pay?
On Sunday, Xiao Ming and four classmates went to the park to play. 5 yuan for children in the park. How much did they spend? Take 30 yuan. Is there enough money to buy a ticket?
Xiao Ming is 8 years old, his grandfather is 72 years old, and his father is 6 times as old as Xiao Ming. (9 points)
(1) How old is Dad this year?
How old is grandpa than dad?
4.
I bought five cups.
Bought 1 teapot and 7 scissors.
(1) Please estimate how much it will cost.
(2) How much should I pay?
(3) If you pay the clerk 100 yuan, how much money should you get back?
(4) Put forward a math problem and answer it yourself.
In order to make the campus more beautiful, Yutou School put 24 pots around the playground.
The school gave us an opportunity to put forward ideas and help design.
Seven, I'll showdown (additional questions)
Use your head: (additional questions 10)
1. Count the angles.
( ) ( ) ( )
2. A cube has () faces, each face has () right angles, and the cube has () right angles.