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BẠN ĐIỀN SỐ GÌ?





Điền vào dấu ?
I. Câu 1.
Nếu như 2 - 1 = 3
Thì 2 - 3 = ? và 3 - 3 = ?. (Phải nêu rõ tại sao điền như vậy).

II. Câu 2. Rất dễ, nhưng yêu cầu phải điền thật đầy đủ bằng số (không được biểu diễn bằng số mũ lũy thừa và không biểu diễn bằng chữ).
Nếu như:
1 = 1
2 = 10
3 = 100
...
50 = 10000000000000000000000000000000000000000000000000
51 = 100000000000000000000000000000000000000000000000000
...
1000000000 = ?.

Trả lời
2-1=3 suy ra 3+1 =2 nên 2-3=1.

Câu 2
1 = 1
2 = 10
3 = 100
.....
50 = 10000000000000000000000000000000000000000000000000
51 = 100000000000000000000000000000000000000000000000000
quy luật có dạng: a=1[(a-1)chữ số 0]

suy ra 10=1000000000 đảo ngược lại 1000000000=10
 
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