The thickness of 100 sheets of paper is about 1cm, () sheets of paper is about the last meter. Then the thickness of 100 million sheets of paper is about () meters Now I'll take it! OK, 12 extra points

The thickness of 100 sheets of paper is about 1cm, () sheets of paper is about the last meter. Then the thickness of 100 million sheets of paper is about () meters Now I'll take it! OK, 12 extra points

The thickness of 100 sheets of paper is about 1cm, which is 0.01M,
The thickness of one sheet of paper is 0.0001 M,
0001 = 10000 sheets
100 million = 100000000,
100000000 * 0.0001 = 10000m,
So 100 million sheets of paper are 10000 meters thick
Upstairs, you have one billion, one hundred million is ten thousand, eight zeros behind one, you wrote one more

1+2+23+4+5+6+7+8.1000

Summation of arithmetic sequence
S = (first item + last item) × number of items / 2 = 1001 × 1000 / 2 = 500500

1+2=? 1+2+3+4+5+6+7+8+.+1000=?

1 + 2 = 3 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 +. + 1000 = 100500 ha ha, I graduated from primary school

1+2+3+4+5+6+7+8+9+10+11+12+13.+1000=?

(1+1000)*1000/2=500500