The fourth grade first volume mathematics unit 6 examination paper topic (1)
fill (up) a vacancy
1, two adjacent sides () and two opposite sides () of the rectangle.
2. Between two parallel lines, you can draw () line segments perpendicular to the two parallel lines, the length of which is ().
3, a point outside the straight line can be () the vertical line of the known straight line.
4. There are two () on both sides of the angle, and the size of the angle is related to (), not ().
5. A car starts from Chongqing and goes to Chengdu-Chongqing Expressway. It takes 4 hours to get to Chengdu. It travels an average of 85 kilometers per hour, and the Chengdu-Chongqing Expressway is () kilometers long.
6. Fill in the box with >, = or.
25? 400 240? 50 130 ? 24 240 ? 13 350 ? 65 530 ? Fifty-six
12? 270 36 ? 90 785? 43 785 ? 34 48 ? 7 1 480 ? seven
7. The number of A is 28 less than 3 times that of B, the number of B is 205, and the number of A is ().
8. The product of multiplying two numbers is 120. If one factor is enlarged by 5 times and the other factor is reduced by 5 times, the product is (); If both factors are reduced by 2 times, the product is (). If one factor is magnified 3 times and the other factor is magnified 4 times, the product is ().
9. The machinery factory has two production workshops, and each workshop produces 175 machine parts on average every day. This factory produced about () parts in February this year.
10, a log is 20cm long, sawed into small pieces of equal length, and sawed for 4 times, each time with a length of () cm.
Second, I will judge right and wrong.
1, two disjoint straight lines are parallel to each other. ( )
At 2.9: 30, the hour hand and minute hand on the clock face are perpendicular to each other. ( )
3. One factor has two zeros at the end, another factor has no zeros at the end, and the product has at most two zeros ().
4. Multiply any number by 1 to get the original number.
5. In a triangle, there can't be parallel line segments.
Third, I will choose
1、240? 5? The result of 240 is ()
A 1 B 5 C 1200 D 57600
2, a point outside the straight line as a parallel line of the known straight line, can be ().
A 1 B 2 C 3 d is countless.
3. Lele walked around a rectangle, and * * * took 205 steps. The average length of each step he takes is 62 cm, and the circumference of this land is about ().
a 1200m b 1200m c 12m d 120m。
4. A train departs from Station A at 8 a.m. and arrives at Mile Mile at 5 p.m.
In A 13, in B 3, in C 9 and in D 7.
Fourth, I can calculate.
1, oral calculation
150 ? 7= 8 ? 1 15 = 250 ? 60 = 330 ? 40 = 280 ? 5 =
306 ? 4 = 40 ? 250 = 2 13 ? 89 ? 598 ? 25 ? 72 ? 403 ?
2, with vertical calculation
756? 48 = 53 ? 609 = 90 ? 560 =
3. Use your favorite method to calculate.
420 ? 25 (485 + 2 18 )? 14 572 - 186-2 14
435+27 1+ 165+229 240+ 160? 50 ( 184+425)? three
Verb (abbreviation for verb) I can draw.
A vertical line and a parallel line pass through both sides of point B, which are angles respectively.
. B
Sixth, solve the problem.
1. Aunt Chen bought a commercial house in Century Sunshine Community, with an area of 103 square meter and a price of 2988 yuan per square meter. How much did Aunt Chen spend on buying this suite?
Xiao Fang plays 1 15 badminton every minute and plays 15 minutes. Chen Mei kicks 123 balls per minute, and kicks 14 minutes.
Which of them plays more? How much more?
3. Gree 1.5p air conditioner purchase price 1850 yuan, the price of exclusive store is 2230 yuan. From June 8 to June 22 this year, a Gree store sold an average of four such air conditioners every day. How much money has this shop made recently?
The fourth grade first volume mathematics unit 6 examination paper topic (2)
Fill in the blanks.
1 What can I fill in? ()?
40? ()& lt3 16 60? ()& lt206
50? ()& lt408 70? ()& lt427
2. 185? The highest bit of the quotient of 43 is in the () position; 727? The highest quotient of 27 is in () position.
3. After the swallow broke out of its shell, its mother fed the swallow 192 pests within 24 days, with an average of () per day.
4. In division with remainder, dividend = ()? ( )+( )。
5. When three digits are divided by two digits, the quotient may be () digits or () digits.
6.□67? The quotient of 72 is two digits, and the smallest in □ can be filled in (); When the quotient is a single digit, □ can be filled at most ().
7. The quotient of dividing two numbers is 20, the dividend and divisor are divided by 3 at the same time, and the quotient is ().
Second, judge.
1. Because of 7? 2=3 1, so 70? 20=3 1。 ( )
2. There must be 0 at the end of dividend and 0 at the end of quotient. ( )
3. When trying the quotient, the product of divisor and quotient is less than dividend, and the quotient must be correct. ( )
4. Dividend and divisor increase with the same number, but the quotient remains unchanged. ( )
In the division formula, the remainder of each division must be less than the divisor. ( )
Third, choose.
1.398? 66,66 is regarded as 70 in the trial quotient, and the obtained quotient is easy ().
A. Too big B. Too small C. Not sure
2.92? 3=302, if the dividend and divisor are expanded to 10 times at the same time, the remainder is ().
A.2 B.20 C.200
3. Three digits divided by 36 has a remainder, and the maximum remainder is ().
B.36 C.35
4. The following formula equals 56? The product of 25 is equal to ().
.28 caliber? 50 B.56？ 250 C.28？ 25
5. if a? B=c(b is not 0), then (a? 10)? (b？ 2)=( )。
a . c . b . 5？ c C.20？ c
Fourth, calculation.
1. Write directly.
450? 50= 100? 20= 720? 80=4000? 80=
724? 90? 600? 59? 4 16? 60? 557? 83?
2. Use vertical calculation.
552? 42= 3 16? 78= 1600? 32= 48 1? 19=
3. Use vertical calculation and fill in the calculation results in the essay.
16? 12 1= 130? 26=
99? 19= 12 10? 22= 6? 3 17=
Fifth, solve the problem.
1. Terracotta Warriors and Horses Pit No.1 of Qin Shihuang Mausoleum is rectangular, covering an area of *** 14260 square meters. It is known that it is 62 meters long from north to south, and how many meters long from east to west?
2. One day and night on the earth is 1440 minutes, which happens to be? Shenzhou? The pilot 10 spent six times as much time in space as it did day and night10. Shenzhou? 10 How many minutes did the pilot stay in space one day and one night?
3. What did the school decide to do with 400 yuan money? Advanced individual in reading activities? Buying prizes is a favorite book for students.
1) If you only buy science fiction stories, how many can you buy at most?
(2) If you only buy encyclopedias, how much will it cost to buy 10?
Xiao Ming accidentally wrote the divisor 72 into 27 when calculating the division, and the quotient obtained was 26, and the remainder was 18. Can you help him work out the correct result?
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