18x123+9x4567x2+5310x6
1+4+7+10+...+49+52+55+58-410
18x123+9x4567+5310x6/1+4+7+10+...+49+52+55+58-410
18x123+2x4567x9+6x5310
-----------------------------------------------------
1+4+7+10+...+49+52+55+58-410
1tinh nhanh
a,18x123+9x456x2+3x53x6/1+4+7+......+49+52+55+58-410=
17,75+16,25+14,75+13,25+.....+4,25+2,75+1,25=
Tính nhanh : 2006x125+1000 / 126x2005-888
tính nhanh
18*123+9*4567*2+5310*6 phần 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) \(\dfrac{18x123+9x4567x2+3x5310x6}{\left(2+4+6+...+20+22\right)+48}\)
Tính nhanh
\(\frac{2006x125+1000}{126x2005-888}\)
Ai nhanh nhất mình tick
1+4+7+10+....................+49+52+55+58-410