246+244+242+240+238+236+234+232+230+228+226+224+222+220+218+216+214+212+210+208=?
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
NH
3
ND
Nguyễn Đức Trí
VIP
10 tháng 8 2023
\(A=248-242+240-234+232-226+...+216-210\)
\(=4+4+4+...4\)
Số số 4 là \(\left(248-216\right):8+1=5\)
\(\Rightarrow A=5.4=20\)
LT
1
HI
2
LN
16 tháng 8 2017
211. She was too ashamed.to tell her teacher about the stupid mistakes. (shame)
212. This photo has just been…enlarged .(large)
213. He always fells…sleepy .in class because of his laziness. ( sleep)
214. She failed the driving test because she didn’t follow the guidance of the driving…instruction.(instruct)
215. He…readily..agreed to my suggestion. (ready)
216. The island is…accessible..only by boat. (access)
217. They spent all their money and made no…providence….for their future. (provide)
218. When foreigners ask him, he answers in English…automatically…(automatic)
219. What he has explained about that problem is…reasonable…(reason)
220. You must always tell the…truth..(truth)
221. The girl looked…thoughtless .for a moment and then answered. (think)
222. The country’s…natural..resources include forests, coal and oil. (nature)
223. The agency offers practical…guidelines .to people starting their own business. (guide)
224. There is a…determination.to overcome the problems. (determined)
225. We were…fearful .that she would be angry.(fear)
226. These closures will mean…unemployed .for about 500 workers. (employ)
227. The house was…crowded.with people. (crowd)
228. I’m extremely….sorry for the delay. (extreme)
229. Because of his love for teaching, David would…continue .his teaching career. (continuous)
230. It is often useful to make a…comparion..between two things. (compare)
231. He was…selected ..for the job by a committee. (selection)
232. The smoke that comes from a lit cigarette contains many different…poisonous..chemicals. (poison)
233. …chemistry…compounds are often used for fertilizers. (chemist)
234. Many…industrial .developed countries spend much money preventing environmental pollution. (industry)
235. Our atmosphere is becoming more and more…contaminated.(contaminate)
236. It is illegal….to drive on the left in Vietnam. (legal)
237. Can you…explain.what this word mean? (explanation)
238. American women are used to being…independent..(independence)
239. I will come to her party because I accept the…invitation.(invite)
240. You should spend your money…economically.(economy)
NT
1
HQ
Hà Quang Minh
Giáo viên
29 tháng 11 2023
18 : 2 = 9 10 : 2 = 5 4 : 2 = 2 | 14 : 2 = 7 20 : 2 = 10 2 : 2 = 1 | 30 : 5 = 6 10 : 2 = 5 25 : 5 = 5 | 50 : 5 = 10 35 : 5 = 7 45 : 5 = 9 |
PT
1
4540 nhé
4540 dãy số cách đều