Sixth grade Chinese Volume II (knowledge and ability training) and PEP The illustration in the book shows a child reading a book. Deputy battalion commander Hao looks at the picture and ponders silently. Then he says to himself how good it is —————— Question: read the following sentences. First change the underlined part of the sentences into a word and write it in brackets. Then write your understanding and experience according to the prompts The line drawing part is saying to yourself
Self talk, understanding and experience: it expresses the speaker's yearning and longing for the reading scene, and also expresses his good hope for a better life in the future. He hopes that children can receive a good education in the future
Mathematics training paper for Grade 6 - Calculation of area (2)
Simple calculation 1 / 3 + 1 / 15 + 1 / 35 + 1 / 63 + 1 / 99
1 / 3 = 1 / 1 * 3 = (1 / 3-1 / 5) / 2,1 / 15 = 1 / 3 * 5 = (1 / 3-1 / 5) / 2,1 / 35 = 1 / 5 * 7 = (1 / 5-1 / 7) / 2,1 / 63 = 1 / 7 * 9 = (1 / 7-1 / 9) / 2,1 / 99 = 1 / 9 * 11 = (1 / 9-1 / 11) / 2, then go back to the original formula, 1 / 3 + 1 / 15 + 1 / 35 + 1 / 63 + 1 / 99 = 1 / 1 * 3 + 1 / 3 * 5 + 1 / 5 * 7 + 1 / 7 * 9 + 1 / 9 * 11 = (1-1 /
1+2+3+4+…… +2012+2013
From the meaning of the title:
1+2013=2014
2+2012=2014
So:
simple form
=(1+2013)×2013÷2
=2027091