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33 phần 100 x 33 + 33 phần 100 x 66 + 33 phần 100 x 1
= 33 phần 100 x ( 33 + 66 + 1 )
= 33 phần 100 x 100
=3300 phần 100 = 33 phần 1 = 33
33/100×(33/100+66)
33/100×(33/100+66/1)
33/100×(33/100+6600/100)
33/100×6633/100
19899/100
![](https://rs.olm.vn/images/avt/0.png?1311)
11+22+33+55+88+1111+34625=35945 bn nhé
hãy nhớ k cho mk 100% đúng.
![](https://rs.olm.vn/images/avt/0.png?1311)
11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99
= ( 11 + 22) + ( 33 + 44) + ( 55 + 66) + (77 + 88) + 99
= 33 + 77 + 121 + 165 + 99
= 495
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11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99 + 111
= (11 + 99) + (22+88) + (33+77) + (44+66) + 55 + 111
= 110 * 4 + 55 + 111
= 440 + 55 + 111
= 606
duyệt nhanh
![](https://rs.olm.vn/images/avt/0.png?1311)
11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99
= (11 + 99) + (22 + 88) + (33 + 77) + (44 + 66) + 55
= 110 + 110 + 110 + 110 + 55
= 110 x 4 + 55
= 440 + 55
= 495
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99
= (11 + 88) + (22 + 77) + (33 + 66) + (44 + 55) + 99
= 99 + 99 + 99 + 99 + 99
= 99 x 5
= 495
\(\dfrac{100}{33}\) > 1
\(\dfrac{33}{88}\) < 1
\(\dfrac{100}{33}\)> \(\dfrac{33}{88}\)
100/33