(2 + 4 + 6 + ... + 100).(36.333 - 108.111) = (2 + 4 + 6 + ... + 100).(36.3.111 - 36.3.111) = (2 + 4 + 6 + ... + 100).0 = 0
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Các câu hỏi tương tự
(2+4+6+.....+100).(36.333-108.111)
A =19.64+76.84
B =136.68+16.272
C=(2+4+6+....+98+100) . (36.333-108.111)
Tính nhanh:
a)136.68+16.272+100.64
b)341.67+341.16+659.83
c)140+136+132+...+64+60
d) (2+4+6+8+...+100).(36.333+108.111)
e)2.4+4.6+6.8+...+98.100
Giai giup minh bai toan nay dk ko bai tinh nhanh
a) (2465-275)-(465-375)
b)20152015.2016-20162016.2015
c)39.24-14/25+39.23
d)33.17+36/31.19+8
e)(2+4+6+...+100).(36333-108.111)
g)2003.14+1988+2001.2002/2002+2002.503+504.2002
Bai 1: Tinh nhanh
a)(2+4+6+...+240).(111.108-36.333)
b)(236.5-236.4-236).(1+6+11+16+...+311+316)
7/10= ; 7/100=; 6 38/100=; 2014/1000=; 3/2=; 2/5=; 5/8=; 1 1/4=; 6 38/100=; 600/38=
2/ 2 * 4 + 2/4 * 6 + 2/ 6 * 8 + ....... + 2/ 98 * 100
1+1+2+2+2+3+3+3+4+4+4+5+5+5+6+6+6+7+7+...+99+99+100
tính 2/2*4 + 2/4* 6 + 2/6*8+.....2/98*100