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18 tháng 6 2016

234.(1000....00-1) (có 50 chữ số 0)

= 234.1000......00 (có 50 chữ số 0) -234

= 234000....00 (50 chữ số 0) -234

= 23399....999766

= 47 chữ số 9

17 tháng 9 2015

=234.(10000..000-1).   (50 chữ số 0)

=234000...000-234.      (50 chữ số 0)

=23399...99766.            (47 chữ số 9)

18 tháng 6 2019
https://i.imgur.com/bP63q39.jpg

Bạn ơi đề bài đâu bạn

27 tháng 8 2018

là tìm các tích mình xin lỗi nhé

23 tháng 8 2023

Số

9 724

46 875

703 410

4 297 603

Giá trị của chữ số 4

4

40 000

400

4 000 000

Giá trị của chữ số 7

700

70

700 000

7 000

 

Có 7 số 9

5 tháng 11 2016

Có 8 số 9

HQ
Hà Quang Minh
Giáo viên
8 tháng 10 2023

\(\begin{array}{l}a) 1234.9 = 1234.\left( {10 - 1} \right) \\= 12340 - 1234 = 11106\\b) 1234.99 = 1234.\left( {100 - 1} \right)\\ = 123400 - 1234 = 122166\end{array}\)

CÓ MẤY...
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CÓ MẤY SỐ9

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9
4 tháng 12 2017

1 so

k nha

4 tháng 12 2017

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