Find Chinese typos and math problems (application problems and calculation problems)
5.6×2.9
3.77× 1.8
0.02×96
5.22×0.3
9.99×0.02
4.67×0.9
5×2.44
1.666×6. 1
9.432×0.002
5.6×6.5
4.88×2.9
5.6 1×4.3
8.9×2.4
5.5×55
9.77×0.02
1.384×5. 1
8.78×83
2.6×6 1
0.059×0.2
4.268× 1.7
57×5.7
9.46×2.85
17.8×6.4
1.5×4.9
2.5×0.88
5.555×5.2
2.22×3.33
7.658×85
36.02×0.3
[Divide by # instead of multiplying by X ..
1: There are 90 ping-pong balls in the sporting goods. If every two are packed in a box, can they be packed properly? If you pack a box every five, can you finish it? Why?
90#2=45 boxes
90#5= 18 boxes
A: If every two are packed in a box, they can be packed accurately. If every five are packed in a box, it can also be packed accurately. Because 90 is divisible by 5.
There are 57 balls in the sporting goods store, and every three balls are packed in a box. Can they be properly packed?
57#3= 19 cases
A: I can just finish it.
3: A and B type 10000 words, A type 1 15 words per minute, and B type 135 words per minute. How many minutes will it take?
10000 # (115+135) = 40 points.
A: It will be completed in 40 minutes.
4. Grade five students plant trees, 13 or 14. Each group has just finished. How many students took part in planting trees in grade five?
13X 14= 192 people
Answer: At least 192 people participated in tree planting in the fifth grade.
Although the following questions belong to practical problems, they are related to equations. I solved it with equations.
5: Two cars go back and forth from one place. One car has a speed of 365,438+0 kilometers per hour, and the other car has a speed of 44 kilometers per hour. How many minutes later, the two cars are 300 kilometers apart?
Equation:
Solution: Two cars meet after X point.
3 1X+44X=300
75X=300
X=4
4 hours =240 minutes
Answer: After 240 minutes, the distance between the two cars is 300 kilometers.
6: Two engineering teams will excavate a tunnel with a length of119m, and two teams will carry out construction from both ends. Team A digs 4 meters every day, while Team B digs 3 meters every day. How many days does it take to dig the tunnel?
Solution: Set X days to dig tunnels.
3X+4X= 1 19
7X= 1 19
X= 17
Answer: 17 days, the tunnel was dug.
7. School chorus and dance team 140 people. There are six times as many people in the chorus as in the dance team. How many people are there in the dance team?
Solution: There are X people in the dance team.
6X+X= 140
7X= 140
X=20 people
A: There are 20 people in the dance team.
From here on, this is not an equation problem.
8. The two brothers walked from home to the gym at the same time, with a length of 1300m. My brother walks 80m per minute, and my brother rides his bike to the gym at a speed of 180m per minute, and will be right back. On the way, he met his brother. How many minutes did my brother walk?
1300x2 = 2600m 2600#( 180+80)
=2600#260
= 10 point
Answer: At this time, my brother left 10 minutes.
At 9 o'clock on Children's Day, Mr. Wang bought 360 biscuits, 480 sweets and 400 fruits, made a beautiful gift package and distributed it to the children as gifts. How many gift packages can he make at most?
360+480+400= 1240
Answer: You can make at most 1240 small gift packages.
10: Naughty bought 40 balloons and invited his classmates to blow them at home. In order to share the balloons equally, how many students should be invited to blow them? Naughty not to participate.
40#2=20 people 40#4= 10 people 40#5=8 people.
40#8=5 people 40#@0=4 people 40#20=2 people.
A: There are six ways to invite students, namely: 20, 10, 5, 8, 4 and 2.
1 1: trapezoidal corn field with upper bottom 15m, lower bottom 24m and height 18m. There are 9 corn plants per square meter on average. How many corn can be planted in this field?
( 15+24)x 18 # 2 = 35 1 m2
35 1X9=3 195 strain
A: This land can grow 3 159 maize plants.
12: The number of students in a class is less than 100. When waiting in line, there is just one more person in each row of 5, 4 or 3 people. How many people are there in this class?
5X4X3=60 people 60+ 1=6 1 person
A: There are 6 1 person in this class.
13: Wang Yue has a box of chocolate candy. The number of chocolates every 7, 5 and 3 is 1. How many chocolates are there in this box?
7X5X3= 105 capsules 105+ 1= 106 capsules.
There are at least 106 chocolates in this box.
14: There is a rectangular tunnel with a length of 15 m and a width of 1.2 m in Chenguang Community, which needs to be paved with square bricks. The designer prepared a square brick with a side length of 30 cm. Please calculate: how many such bricks are needed? If each square brick is 3 yuan, how much will it cost to build this tunnel?
15m = 150 decimeter 1.2m = 12 decimeter 30cm =3 decimeter.
150x12 =1800 square decimeter 3X3=9 square decimeter.
1800#9=200 yuan 200X3=600 yuan.
Answer: We need 200 such square bricks, and we need 600 yuan.
15: There are two parallelogram experimental fields with the same area. One is 70 meters long, 45 meters high and the other is 90 meters long. What's your height?
70x 45 = 3 150 m2 3 150 # 90 = 35m。
A: The height is 35 meters.
16: A batch of steel pipes are piled into a pile, with the bottom layer 10, the top layer 1 less 1 less, and the top layer 1 less. How many steel pipes are there in this batch?
10-5+ 1=6 floors (10+5)X6#2
= 15X6#2
=90#2
=45 pieces
A: There are 45 steel pipes in this batch. Enough!
Chinese
5. Underline the wrong words in the following sentences and correct them in (). (6 points)
(1) Yuanmingyuan is a world-famous royal garden, located in the northwest suburb of Beijing. ( )
(2) Xiaoli jumps over the basket to lead the way. ( )
(3) The mountain-bearer said that it was impossible to be late without taking a step. ( )
That's all I found
How to write two calculation problems and one application problem in the mid-term exam wrong? Math teacher: If you make a mistake, write it according to your own real reasons, such as mistakes in copying questions, calculation, removing brackets and so on. The application of the problem series equation may not find the equivalent relationship, and so on.
Is there a calculation problem (comprehensive application problem) in the chemistry exam of senior one? It may be, or it may be an experimental problem. Senior one has learned the amount of matter, so it is quite possible to do a simple calculation.
I made a mistake in the math exam, because I reviewed a calculation problem that the teacher just commented on not long ago and was punished by the teacher. What should I do? Urgent ~ ~ ~ Be sincere, apologize first, then realize your mistake, and finally don't make similar mistakes again. You don't need too many words, just have the above points. The purpose of the teacher's asking you to write is to make you remember, for your own good.
If the number of application questions in the final math exam is wrong, will the whole question be deducted? If the process is right, you will still get points. If you make a mistake, you will be deducted about half of the points. But if the teacher is strict, it is possible to deduct all the points.
Hope to adopt!
What if children always read the wrong questions when doing vertical calculations? I suggest you check your children, let them see how you do vertical calculation, and tell them peacefully that because we came from that era, we should explain it to them in detail and not casually.
I hope I can help you.
In the math exam, the application question scored 4 points, and the answer was calculated correctly, but the formula was wrong. According to the final exam, how many points should I deduct? Mathematics is generally graded according to steps, and it is estimated that 4 points will be deducted or one point will be given.
However, some marking teachers only look at the final answer and may not find your formula wrong, so they may not deduct your score.
You can't use the computer in the chemistry exam. How to do the calculation? Generally speaking, figures are data that can be calculated as a whole and will not give you too difficult data. After all, what he wants to take is chemistry, not mathematics, as long as you know the knowledge points,,, but it doesn't rule out that there will be data difficulties, which depends on your math skills. Do you bite the bullet? Are you going to finish writing this topic soon?
It depends on the teacher's requirements whether the calculation process should also be written in the formula of the application questions in the math exam.
Of course, strict teachers are required to write. If they are not strict, it is better to write. After all, organize your own thoughts, but if it is too much trouble, you don't have to write in such detail.
Some things that must be written to solve the problem:
"Solution": "Proof" and so on.
Calculation process (if necessary, remember to write down the reasons and reasons)
Answer the question (conclusion)