The second grade first volume mathematics final examination paper
First, oral calculation. (65438+ 0 points for each small question, ***20 points)
35? 7= 6? 3= 8? 9= 56-28=
48? 6= 7? 7= 28+46= 2 1? 3=
9? 0= 72? 8= 8 1? 9= 7? 6=
8? 1= 5? 9= 63? 7= 64? 8=
3? 4+24= 7? 5-23= 36? 6+40= 18? 9+33=
Second, think about it carefully. I'll fill it out. (Per grid 1 minute, ***23 points)
1, rewriting 8+8+8+8 into multiplication formula is () or (). Put 5? 3 rewritten as addition formula is () or ().
2. According to the multiplication formula? Six, eight, four, eight Write two multiplication formulas () and () and two division formulas ().
3 and 32 have () eights, and 32 is () times of 8.
4. Fill in the appropriate units in the brackets below.
The length of the blackboard is about 3 () and the thickness of a dictionary is about 3 ().
Xiaohong is about 130 () high, and the pencil box is about 2 () long.
5.35 years old? In 5=7, the quotient is (), the divisor is (), and the formula for calculation is ().
What is the triple of 6 and 9? The column type is _ _ _ _ _ _ _ _ _ _ _ _
How many times is 9 than 3? The type of column is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
7. () Angle is less than right angle, obtuse angle is less than right angle ().
8. A triangle has at most () right angles and () acute angles.
Third, I am the referee. (Right? , wrong number? ) (2 points for each small question, *** 10)
1, add 7 and 9, add 7 9s to write 7? 9。 ( )
2、24? Six and four years old? The formulas used in the calculation are four, six and twenty-four. ( )
What's twice 3.8? The formula is 8? 2=4 ( )
Rectangular and square have four right angles. ( )
5、4? 6+6=6? 5 ( )
Fourth, sit in the right position. (Choose the serial number of the correct answer and fill in the brackets) (65438+ 0 points for each small question, ***5 points)
1, measure the height of the math building in units of ().
A. decimeter centimeter centimeter meter
2、30? 5=6 means ().
A. Five sixes are 30 b. Six fives are 30 c. Divide 30 into five equal parts, each of which is 6.
3. The triangle scale from 1 to 6 indicates that the length is ().
A.6 B.5cm C.6cm
4. The size of the angle and the length of both sides of the angle ().
A. irrelevant C. uncertain
5. ask? What's the sum of four eights? The error in the following formula is ().
A.4+8 B.8？ 4 C.4？ eight
Five, draw a picture, fill in (every grid 1 minute, *** 14).
1, draw ○ on the horizontal line, and the number of ○ is □
2. Fill in the circle? +? 、? -? 、? 、?
6○9=54 40○5=8 20cm○8dm= 1m
40○4=36 2○9=3○6 4○8=3○4
3. Fill in the appropriate numbers in brackets.
( )? 5=35 8? ( )=64 ( )+ 14=60
( )? 9=8 54? ( )=6 ( )-25=35
Six, solve the problem (4 points for each small question, ***28 points)
1, there are 24 moon cakes.
(1) every 4 packs 1 box. How many boxes can you hold?
(2) If these mooncakes are divided into three plates on average, how many mooncakes can be put in each plate?
2.( 1) In the handicraft class, a group of 8 people each made 4 flowers. How many flowers did a * * * make?
(2) There are two people in the second group. Xiaohong made eight flowers, Xiao Fang made four flowers and a * * * made several flowers.
There are 6 big peacocks and 42 small peacocks in the park. How many times has the peacock?
Review materials of mathematics in the second grade of primary school
1, if you want to get the same result, you should choose the same project as the measurement standard.
2. The commonly used length units are: meters and centimeters.
3. To know the length of an object, you can measure it in feet.
4. The measurement of short objects is usually in centimeters; Long objects are usually measured in meters.
5. When measuring: ruler? 0? The ruler is aimed at the left end of the object, and then at the right end of the note, a few centimeters.
6 when calculating the length unit, first look at whether the unit is the same, and change it to the same unit if it is different.
Add and subtract. 1m = 100cm 1m-40cm = 60cm 1-40。
100cm-40cm = 60cm
40 centimeters? centimetre
7. Add and subtract in units, first look at whether the units are the same. Before addition and subtraction, different units should be converted into the same unit. If the units are the same, add and subtract directly.
96 cm < 1 m
Analysis: To do such a big problem, we should not only compare the size of the numbers, but also look at the units behind. First of all,
The size of the comparison number after conversion to the same unit.
Mathematics review plan for the second grade of primary school
First, the basic situation analysis of the class:
After a semester's study, most students have basically completed their learning tasks this semester, and they have done well in the calculation part, which is also a key content of this semester's study.
Generally speaking, most students have formed good study habits. They can listen carefully and answer positively in class, finish their homework on time after class and correct their mistakes in time. However, there are also a few students who are lazy, don't think about problems in class, have low homework efficiency, and can't take the initiative to correct mistakes in time. In homework, some students are impetuous, especially in calculation. Carelessness is widespread, and there are often cases of copying wrong numbers, writing wrong symbols, forgetting to bring them, and writing only half unit brackets when solving problems. In addition, there are still a few students whose learning state is very unstable, and they need teachers and parents to do ideological guidance. In the review process, we should know the students' learning situation in time. According to their age characteristics and cognitive rules, we should not only pay attention to strengthening the teaching of basic knowledge, but also pay attention to developing students' intelligence, cultivating students' ability and forming good study habits.
Second, teaching material analysis:
In this textbook, the content of calculation teaching is addition, subtraction, multiplication and division within 100 (unit 2, unit 4 and unit 6). These two parts are the important basis for further research and calculation. Especially in-table multiplication is the basis of learning multi-digit multiplication. Because any multi-digit multiplication must be divided into several one-digit and one-digit multiplications when calculating. Therefore, table multiplication, like addition and subtraction within 20, is an important basic knowledge of primary school mathematics and one of the basic skills that primary school students need to master, and it must be calculated correctly and quickly. At the same time, addition, subtraction and multiplication within 100 are mathematical knowledge and skills that people often use in solving problems in daily life. Therefore, in these two parts of computing teaching, the textbook arranges the teaching of using these knowledge to solve problems, so that computing teaching and problem-solving teaching can be organically combined. This not only helps students to understand the connection between mathematical knowledge and real life, but also helps to cultivate students' ability to solve practical problems by applying the learned mathematical knowledge.