homework: Lesson 1: Mathematics of Gauss's Teacher 1 + 2 + ... + 9 =? Lesson 2: Mathematics of Gauss's Teacher 1 + 2 + ... + 99 + 100 =? Lesson 3: for example: +0=0+0; =0. +1=1+0; =1 +2=1+1+0; =1+1; =2+0; +3=1+1+1+0; =2+1; =3+0. +4=1+1+1+1+0; =2+1+1; =2+2; =3+1; =4+0; =4. +5=... +6=... +7=... +8=... +9=1+1+1+1+1+1+1+1+1; =2+1+1+1+1+1+1+1; =3+1+1+1+1+1+1; =4+1+1+1+1+1; =5+1+1+1+1; =6+1+1+1; =7+1+1; =8+1; =9+0; =9; =1+2+1+1+1+1+1+1+1; =2+2+1+1+1+1; =3+2+1+1+1+1; =4+2+1+1+1; =5+2+1+1; =6+2+1; =7+2+0; =1+3+1+1+1+1; =2+3+1+1+1+1; =3+3+1+1+1; =4+3+1+1; =5+3+1; =6+3+0; =... Complete the above example as these representations. Mathematics for 1st grade students; middle and high school students cannot touch it.
2 câu trả lời
The term of the term is:
`(9-1): 1 + 1 = 9 (number)`
The sum of the numbers is:
`[(9 + 1) .9] / 2 = 45 (number)`
The term of the term is:
`(100-1): 1 + 1 = 100 (number)`
The sum of the numbers is:
`[(100 + 1) .100] / 2 = 5050 (number)`
Bài 1:
Số số hạng: (9-1)+1=9(số hạng)
Tổng: (9+1)×9÷2=10×9÷2=45
Bài 2:
Số số hạng: (100-1)+1=100(số hạng)
Tổng: (100+1)×100÷2=101×100÷2=5050
CHÚC BẠN HỌC TỐT!!!??????
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