Answers to the synchronous unit test of Mathematics Grade 7 (I) I want the answer to unit 1.2 All the answers to units 1 and 2

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Unit test of rational number in mathematics of grade seven
1. Write all integers with absolute value greater than 3 and no greater than 8, and point out the maximum and minimum number
2. A maintenance team takes a car along the road maintenance line, and it is agreed that the forward direction is positive and the backward direction is negative. On a certain day, the route (unit: km) from 0 to the end of work is:
+10、-3、+4、+2、-8、+13、-2、+12、+8、+5
(1) How far is the closing time from zero?
(2) If the fuel consumption per kilometer is 0.2 liter, how much is the total fuel consumption from zero to the end of work?

The answer of rational number in Chapter one of mathematics unit test questions of grade seven, it's better not to copy it from the website. Chapter one of rational number exercise test questions (1.1-1.2) in mathematics volume one of grade seven

Meteorological proverbs and explanation

It's not big
The dark clouds continue to set, the sun never sets today, the sun sets tomorrow
In the evening of spring and summer, in the west of the sky, there are black clouds standing up like stone mountains to greet the sun. When the sun goes down into the clouds, they can't see it. The masses call it "black clouds meet the setting sun". This kind of black cloud refers to thick cumulus clouds or cumulonimbus clouds. Most of this situation is caused by the system of high, low altitude and low pressure. Its movement law is generally from west to East, so it will affect the local area, Most of them are slow. It won't rain until tomorrow, so it's called "don't fall today, fall tomorrow."
A collection of meteorological Proverbs
Astronomical phenomena
1. It will clear up after a long rain and a southerly wind
2. The clouds are twisted and the rain is drenched
3. Rising in the morning and falling in the evening
4. It's raining with anvil clouds
5. The direct thunderstorm is small and the horizontal thunderstorm is big
6. Flash from south to North
7. The moon has a red umbrella and it rains heavily
8. The moon is blue and windy
9. It rains in three days after sunset
10. In the northwest, we see the sun in the afternoon
11. Starlight is coming
12. Long sunny days, soon rain
13. It rained for several days
14. There are cotton clouds in the morning and thunder and rain in the afternoon
15. The wind is still and sultry, the thunderstorm will be strong
image
16. Swallows flying low will rain
17. More grass and more rain in swallow's nest
18. Geese flying south will be cold, geese flying north will be warm
19. It will rain when ants move
20. Big banyan leaves no leaves in winter, indicating cold in spring
21. The cold wave is coming
22. When dogs soak in water, it will rain
23. It's going to rain when chickens are drying their wings
24. Bees return late, rain comes and wind blows
25. There is heavy rain when earthworms seal the hole
26. Warm days and cold nights make the East China Sea dry
2. It's windy and rainy
3. Tank wear skirt, rain; salt water, iron sweat, rain is not uncommon
The stars blink, the rain is not far; the stars twinkle, the wind becomes stronger
5. Before thunder strikes, there is no sky in 49 days
6. Ten fogs and nine clear days
It's fine in the morning and cloudy in the evening
8. It's rainy in the morning and sunny in the evening
Good mid autumn, good late rice
10. Sunrise in Donghong and rain in Xihong; rain in the morning and clear in the evening
11. The first day falls, the second day disperses; the third day falls, until the half of the moon
12. It's going to rain: Haikou in spring and mountains in winter
13. The spring fog exposes the ghost, the summer fog makes the flood
14. Fog in the morning, although wash clothes
15. When kapok trees bloom, the rainy season should be advanced
16. If you don't eat may Festival rice dumplings, you can't let them go
If you see the moon and stars at night, tomorrow will be the big sun
18. It's going to rain: cicadas stop chirping, crows are crowing in the sky, crows scramble for nests in the daytime, sparrows are flocking under the eaves, bats are flocking in the corner, cockroaches are especially abundant, dragonflies fly low, swallows fly low, grasshoppers jump on the ground, snakes come out of the hole, ants return to the nest, spiders stop in the center of the web, cows and sheep lie down on dry ground, birds and animals flock together, and fish in the water jump all the time for no reason Airplane clouds, dark clouds
Fish scale day (Herring scale), not rain also crazy
The frog croaks, and rain will come
The direction of the clouds is opposite, the clouds are thick, and it will rain
In the morning, the sky is red, and the sea police are fishermen
The earthworm crawls on the road, the rain is chaotic
It's going to rain tomorrow. It's going to rain tonight
Ants swarmed up the wall and the rain drenched the roof beam
It will clear up: Spiders leave their nests to build new nests, north wind blows in spring, scarabs fly into cages and leeches
Ants go out to feed, the sun and rain, roosters go up to the sea, seabirds fly to the sea, birds fly high, pigeons coo in the evening
At dusk, the sky turns red and the fishermen laugh
The sky fish scale spot, on the ground sun grain need not turn
If a spider opens its web, it must be sunny
When the rooster crows high, the rain will stop and the day will be fine
20. Bees fly low, there are thunderstorms
21. Thunder, the end of Meiyu
22. The rice grains are sticky and there are cirrus clouds on the hillside. The weather is fine
23. When migratory birds come early, there is more snow
24. Pigs die in January, cows die in February and Sowers die in March
It's sunny on the eighth day of April, with a good harvest
26. The south wind blows heavily in May, and the south wind blows fine in June; on June 19, there is no geomantic omen
27. Gale in June, flood in July
28. September 9 harbour breeze
29. When the fog goes up close to the top of the mountain, when the smoke goes up, it's sunny, when it's scattered, it's rainy
The weather is getting worse: the ditch stinks, the sea waves (the wind)
The rain comes and the snow never stops
32. When thunder hits the zenith, it's not hard to rain; when thunder hits the horizon, it's hard to rain
It's cold in the morning and evening, hot at noon and rainy for half a month
34. There is a rain mountain with a hat, but there is no rain river with a cap
35. The rain never stops: the top looks at the third day of junior high school, and the bottom looks at the eighteenth
36. Rain on the yuan lamp, the sun Qingming species
37. Heavy rain, no rain, drought next year
38. It rains from the beginning of spring to Qingming
39. When the fog rises to the top of the mountain, there will be torrential rain
40. Dark clouds meet the sun, and the morning is heavy
If you burn early, you can't go out. If you burn late, you can travel thousands of miles
42. Aconitum wind, baitouyu
43. Jiangzhu (dark cloud) crosses the river (Tianhe), and it rains heavily
44. Northeast wind, rain, Taigong
45. Long sunny and heavy fog, long cloudy and heavy fog, long rainy and starry, the rain in Ming Dynasty is more crazy
46. There is half a rainbow at the zenith. If you want to be a typhoon preventer, you can do it
47. Dress in disorder in February and August: mother's face in spring in February, tiger in autumn in August
48. If you don't wear boots before winter, it will be cold after winter
49. If you can't open the fog, you'll have to wear a hat
50. Spring fog and sun, summer fog and rain, autumn fog and cool, winter fog and snow
51. Ten days of spring thunder is cold
52. Light the four sides with rain, light the top without rain
53. Rain takes the streets, typhoons take the alleys
54. First, there is no heavy rain, then it is not sunny

After the first 1 / 10 price reduction of a product, no one wanted to buy it, so the store had to cut the price by 1 / 10 again for promotion?
As above

Eighty one percent

Square of 1996 / 1996 - 1995 * 1997
Simple calculation

1996/(1996^2-1995*1997)
=1996/[1996^2-(1996+1)(1996-1)]
=1996/(1996^2-1996^2+1)
=1996/1
=1996
1996/(1996^2-1995*1997)
=1996/[(1997-1)*1996-1995*1997]
=1996/(1997*1996-1996-1995*1997)
=1996/[1997*(1996-1995)-1996]
=1996/(1997-1996)
=1996/1
=1996

It takes six hours for a person to walk and take a bus, which is 270 kilometers in total. The travel time is twice that of walking, and the travel distance is 210 kilometers more than walking. How many kilometers do you travel per hour?

6 △ 2 + 1 = 6 △ 3, = 2 (hours); (270-210) △ 2 = 60 △ 2, = 30 (km); 30 △ 2 = 15 (km / h); (30 + 210) △ 4 = 240 △ 4, = 60 (km / h). A: the walking speed is 15 km / h, and the riding speed is 60 km / h

What is the meaning of 2 in 23, 0.52 and 2203.7?

2 in 23 is two, 2 in 100.52 is two, 2 in 0.012/3 is two, 2 in 1 / 3203.7 is two

What are the similarities between Shenyang Palace Museum and Beijing Palace Museum

The Forbidden City of Beijing, also known as the Forbidden City, is the imperial palace of Ming and Qing Dynasties. The Forbidden City is the largest and most complete extant ancient wooden structure building complex in the world, and the largest and most complete extant ancient building complex in China. It was built in the fourth year of Yongle of Ming Dynasty (1406 AD) and took 14 years to complete. A total of 24 emperors ascended the throne here

Primary school grade 6 Volume 2 unit 4 words inventory
I don't have any books with me when I do my homework
Reading and writing

Reading, writing and writing
Clever apron, coin crack, window sister rusty, wrinkled, dim, narrow, shrug, a wisp of beating
Skimming, bullying, choking, box freezing, laughing, running past orphans, disturbing sweet christmas tree, black and misty
Smiling
The scoundrel is fierce and pale, and the rescue is indifferent to melancholy. At first, he is depressed and passive. He idles and runs away. He penetrates and doesn't care. He is isolated from the world

Answers to the synchronous unit test of Mathematics Grade 7 (I) I want the answer to unit 1.2 All the answers to units 1 and 2