=18 x 1230+9 x 2 x 4567+ 3 x 6 x 5310
=18 x 1230+18 x 4567+ 18 x 5310
=18 x (1230+4567+5310)
=18 x 11 107
=199926
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Các câu hỏi tương tự
18x123+9x4567x2+3x5310x6
[2+4+6+8+...+18+20+22]+48
1. Tính nhanh
a) 2006x125+1000 phần 126x2005-888
b) 18x123+9x4567x2+3x5310x6 phan 1+4+7+10+...+49+52+55+58-410
Tính Nhanh ( chữ x trog bài b là dấu nhấn )
a) \(\dfrac{2+4+6+8+...+82+84}{4+7+10+13+...+130+133}\)
b) \(\dfrac{18x123+9x4567x2+3x5310x6}{\left(2+4+6+...+20+22\right)+48}\)
a,
,2006x2005-1/2004x2006+2005 b,45x45+45x55/1+3+5+.......+19 c,7256x4375-725/3650+4375x7255
d,35x12+65x13 g,18x123+9x4567x2+3x5310x6
gấp nha các bn lam giup tui cho 3 tick
a,2006x2005-1/2004x2006+2005 b,45x45+45x55/1+3+5+.......+19 c,7256x4375-725/3650+4375x7255
d,35x12+65x13 g,18x123+9x4567x2+3x5310x6
gấp nha các bn lam giup tui cho 3 tick
tính nhanh
a,2006x2005-1 b, 45x45+45x55 c,7256x4375-725 d,35x12+65x13 g,18x123+9x4567x2+3x5310x6
____________ ____________ ______________
2004x2006+2005 1+3+5+.......+19 3650+4375x7255
18x123+9x4567x2+5310x6
1+4+7+10+...+49+52+55+58-410
A= 18x121+9x4569x2+3x5310x6 phần
(2+4+6+8+10+......+20+22)+48
Tính nhanh:
\(\frac{18x123+9x4567+3x5310x6}{\left(2+4+6+....+18+20+22\right)+48}\)