The second volume of mathematics in the second grade of primary school

The final exam of the second semester is the second book of mathematics in two years.

I'll fill it out. (23 points)

1. The following figure is overlapped by translation () and () and rotation ().

2. Divide 12 pears among () little monkeys, and each little monkey will get ().

The price of each piano is 9979 yuan, which is about ().

The Yellow River is the second longest river in China, with a total length of 5464 kilometers.

5, 3986 is () digits, the highest bit is ().

6. Draw and fill in the time.

7.320 is more than 470 ().

8. There are () acute angles and () obtuse angles in the picture on the right.

9. Find the pattern and fill in the numbers: 13, 26, 39, (), 65, ().

10, with a 1, a 7 and two 0s to form four digits, the maximum number is () and the minimum number is ().

1 1 in □:

9 27>9563 9 27>9563 9 27>9563

Second, I will choose to fill in the serial number before the correct answer in (). (5 points)

2. The difference between the largest four digits and the largest three digits is ().

( 1)90 (2)900 (3)9000

3. Four digits with one or two zeros in the middle, ().

(1) Read only one zero (2) Read two zeros (3) Don't read.

4. The formula with the number of 6 is ().

( 1) 18÷3 (2)54÷6 (3)30÷5

As a teacher, draw "√" in () for the right and "╳" for the wrong. (5 points)

The number consisting of 1, 9 ones, 8 tens, 5 hundreds and 4 thousands is 9854. ( )

2. The supply primary school has 1304 students, which is about 1300 students. ( )

One kilogram of iron is heavier than one kilogram of cotton. ( )

4、42÷7>36÷4>35÷7 ( )

5. Fill in the numbers according to certain rules: 100, 90, 8 1, 73, (), and the number in brackets should be 66. ( )

I can do the math. (28 points)

I can add, subtract, multiply and divide. 6 points

9300-500= 76+23= 48÷6= 50-35=

72÷9= 440- 150= 2500+2500= 25+38=

530-370= 4400-900= 36÷9= 6×7=

I can estimate. 4 points

482+ 146≈ 587-2 15≈ 3 18+279≈ 74 1-309≈

I know I can do it well. 6 points

64÷8÷2= 20÷5×6= 5×8+23= 36÷4÷3=

7×9- 17= 6×6+ 15= 64÷8×7= 3×3×8=

40÷5×8= 72÷8×5= 2×9÷3= 63÷7×6=

4. I should put ">", "

36÷6×7 35÷7×8 8×7+ 14 9×6+ 16

3×2÷2 6×6÷9 72÷8×5 2×3×9

Calculate 8 points with a pen

1000-250= 450+650= 560-392= 665+277=

4. 8 points for operational problems.

1. There are () right angles, () obtuse angles and () acute angles in the diagram.

2. Draw a right angle and an obtuse angle on the right.

3. Fill in the blanks first, then draw a figure, translate the figure up by 3 squares, and then translate it to the right by 8 squares.

Solve the problem. (3 1)

Look at the picture. 4 points

2, 4 points

The surface is the weather statistics of Songyuan City in July, August and September, 2005. 7 points

(2) Cloudy days are () times that of windy days.

(3) Please guess that the number of sunny days in July, August and September in 2006 is about () days, and the number of rainy days is about () days.

Four, four points

5 12 point

Sister brought 100 yuan, which two can I buy? 3 points

Please put forward two parallel solutions to different mathematical problems. 9 points

Question 1:?

Line: =

Question 2:?

Line: =