39.337+64.337=337.103=337.100+337.3=33700+1011=34711
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1/2+1/6+1/18+1/54+1/4374+1/13122
D=1/2+1/6+1/18+1/54+1/4374+1/13122 ( . (DẤU CHẤM LÀ ''NHÂN'')
18 * 23 +3 +45 * 6 +9 * 32 *2
425 *7*4 - 170 *60
132 *9 +132
( 56* 27 +56 +35 ):62
39 * ( 250 +87) +61 * ( 240 +97
ai làm nhanh mình tick cho ok
tính nhanh
1) 12.2.25+29.25+59.25
2) 25.(231+69)+72.(231+69)
3) 39.(250+87)+64.(240+97)
4) 36.28+36.82+64.69+64.41
Tính nhanh:
36.(250 + 87) + 64.(240+97)
Tính
1) 12.2.25+29.25+59.25
2) 25.(231+69)+72.(231+69)
3) 39.(250+87)+64.(240+97)
4) 36.28+36.82+64.69+64.41
tính nhanh
a)36.(250+87)+64.(240+97)
b)42.53+47.156-47.114
nhanh,đúng tớ tick cho nhé
A=1/1.2+1/2.3+1/3.4+1/4.5+...+1/98.99+1/99.100
B=2/1.3+2/3.5+2/5.7+2/7.9+...+2/97.99+2/99.101
C=1/2+1/4+1/8+1/16+...+1/1024+1/2048
D=1/2+1/6+1/18+1/54+1/4374+1/13122 ( . (DẤU CHẤM LÀ ''NHÂN'')
a, 28(231+69)+72(231+69) b, 39(250+87)+64(240+97)