Сложите все цифры от 1 до 150 пример: 1 + 2 + 3 + 4 + 5 и т.д.
Apelsinka032
1
22.03.2021 00:29
0 
Популярные вопросы
- What materials are these puppets made of? • cloth • wood • string • leather • rubber...
3 - Use the prompts to complete the dialogues. • I don t mind • That s not right! •...
1 - Circle the odd word out. 1 dull - tiring - awful - fun 2 dominoes - painting - backgammon...
3 - Read the dialogue. What does Greg buy for Judy? Shop Assistant: Good morning. How...
2 - Complete the gaps with the words below. • interested • keen • mad • fond • good...
2 - Before you start ... • What do you like doing in your free time? • Name some popular...
3 - Describe the town to your partner In 1871, there was/were…...
1 - What is a ghost town? Listen, read and circle the correct answer. Mineral Park —...
1 - Follow the instructions to make your own puppet....
2 - Read the sentences below and mark for the shop assistant and (C) for the customer....
1
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+..+101+102+103+104+105+106+107+108+109+110+111+112+113+114+115+116+117+118+119+120+121+122+123+124+125+126+127+128+129+130+131+132+133+134+135+136+137+138+139+140+141+142+143+144+145+146+147+148+149+150=11 325
формула, если надо посчитать сумму от 1 до n-го члена
(150(150+1))/2= 11325