Mid-term examination paper of grade five
I. Fill in the blanks (20 points)
1, in the number 1, 2, 8, 17, 18, 34, 97, 37, 57, 84: () is odd, () is even. () is a prime number and () is a composite number.
2. It means to divide () into () parts on average, indicating the number of such (); You can also divide () into () parts on average, indicating the number of such () parts.
3. () is neither a prime number nor a composite number, and () is both a prime number and an even number.
4.7040 cubic centimeters = () cubic decimeter 3045 milliliters = () liters () milliliters 27 cubic decimeters = () liters 9 cubic meters = () cubic decimeter.
5. Fill in an appropriate number so that 7 1 is divisible by 2. The divisor of 17 4 is 3, and 42 is a multiple of 5.
6. The prime factor of decomposition 48 is ().
7.A=2×2×3×5 B=2×2×2×3 A and B. The least common multiple is () and the greatest common divisor is ().
8. A cube with the sum of side lengths of108cm has a surface area of () cm2 and a volume of () cm3. 9, 12 small square, divided into four parts on average, each with () blocks, each accounting for () of the total. 10, Ba, three scores in descending order (). Second, multiple-choice questions (fill in the serial number of the correct answer in brackets) (16 points) 1. What can be divisible in the following formula is: ()
In all the divisors of 42 ÷ 0.7b2.5 ÷ 5c48 ÷12d12 ÷ 482, the prime number is: ().
One b, two c, three d, four.
3. To spell a big cube with a cube with a length of 1 cm, at least use such a cube (). The number of A two B four C eight D nine is four times that of B, and the least common multiple of A and B is () A, B, B, C, D, A, X, B, 5. How big is the area of the bucket? It refers to the () A surface area, B volume, C volume and D bottom area of the bucket.
6. A 4-meter-long log is sawn into 7 sections on average, and the total length of each section is () A B m C D m
7. The natural number divisible by 2, 3 and 5 at the same time must be () A 0 B 1 C 2 D 5 8. The side length of the cube is expanded by three times and the volume is expanded by () times A 3 B 9 C 36 D 27.
Three. True or false (put "√" in brackets for the right and "×" in brackets for the wrong) (8 points) 1, 3 is a divisor, and 12 is a multiple. () 2, 1 km equals 4 km. (
three
, the volume is
1
Cube, its side length is
1
rice.
(
)
four
The greatest common divisor of two numbers must be less than either of them.
(
)
five
The numerator of a fraction indicates the number of its fractional units, and the numerator is
seven
, indicating that there is
seven
Decimal unit.
(
)
six
because
1
rice
= 100
Centimeters, so
1
cubic metre
= 100
Cubic centimeters.
(
)
seven
Two numbers are coprime and must be prime numbers.
(
)
eight
5 (
1
There are students in the class.
40
People, including boys.
27
Girls account for the whole class.
(
)
Fourth, the calculation (* * *
24
Integral)
1
Find the greatest common divisor of the following groups (
six
Integral)
14
and
35
22
and
33
17
and
seven
2
Find the least common multiple of the following groups (
six
Integral)
seven
、
14
and
35
12
、
15
and
60
three
、
four
and
nine
three
Calculate the volume and surface area of the following cuboids and cubes (
12
Integral)
(omitted)
Verb (abbreviation of verb) application problem (
30
Integral)
1
Electrical appliance factory
2002
The annual output of computers is as follows
Quarters 1, 2, 3 and 4
Output (10,000 units)
25282930
(
1
) tens of thousands of units are produced every quarter on average?
(
2
) tens of thousands of units are produced every month on average? (The number shall be kept to one decimal place)
2
A rectangular long wooden box with no cover.
1.2
Meter, width
0.8
Rice, height
0.6
rice. How many square meters of planks does it take to make this wooden box?
three
An automobile fuel tank with a long interior.
eight
Decimeter, width
five
Decimeter, depth
four
Decimeter if a liter of oil weighs
0.8
How many kilograms can this tank hold?
four
There are pear and peach trees in the orchard. As we all know, pear trees have
43
Trees, peach trees have
5 1
Trees. How many pear trees are there than peach trees? The number of peach trees is the total.
What is the score?
5. Forging a cubic billet with a side length of 0.5m into a rectangular steel with a cross-sectional area of 10 square decimeter. How long is forged steel? (Equation solving)
Thinking questions (10)
Rectangular body length 16 decimeter, height 6 decimeter. If it is cut into two small cuboids horizontally and the surface area increases by 160 square decimeter, what is the volume of the original cuboid?