TÍNH :230+4+3/10+7/100
NL
Những câu hỏi liên quan
tính: 230+4+3/10+7/100
230 + 4 + 3/10 + 7/100
500 + 7 + 9/1000
1) tính
C) 230+4+ 3 phần 10+ 7 phần 100
d) 500 +7+9 phần 1000
Tinh bằng 2 cách
(2,04+3,4):0,68
C,\(230+4+\frac{3}{10}+\frac{7}{100}\)
\(=230+4+0,3+0,07\)
\(=234+0,3+0,07\)
\(=234,3+0,07\)
\(=234,37\)
D,\(500+7+\frac{9}{1000}\)
\(=500+7+0,009\)
\(=507+0,009\)
\(=507,009\)
Bai 2
C1 ( 2,04 + 3,4 ) : 0,68
= 5,44 : 0,68
= 8
C2 ( 2,04 + 3,4 ) : 0,68
= 2,04 : 0,68 + 3,4 : 0,68
= 3 + 5
= 8
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c)234+\(\frac{3}{10}\)+\(\frac{7}{100}\)
=234+0,3+0,07
=234,37
d)507+\(\frac{9}{1000}\)
=507+0,009
=507,009
bài 2:
c1:(2,04+3,4):0,68
=5,44:0,68
=8
c2:(2,34+3,4):0,68
=2,34:0,68+3,4:0,68
=3+5
=8
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300+560,14
230+4+3/10+7/100
45+0,9+0,008
500+7+9/1000
TT
6 tháng 10 2021 lúc 19:57
tính tổng A=(13 1/4-2 5/27-10 5/6).230 1/5+46 1/3 /(1 3/10+10/3):(12 1/3-14 2/7)
bạn ghi lại đề đi bạn! Khó hiểu quá!
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a, Tính : frac{left(13frac{1}{4}-2frac{5}{27}-10frac{5}{6}right).230frac{1}{25}+46frac{3}{4}}{left(1frac{3}{10}+frac{10}{3}right):left(12frac{1}{3}-14frac{2}{7}right)}b, Tính : Pfrac{frac{1}{2}+frac{1}{3}+frac{1}{4}+...+frac{1}{2012}}{frac{2011}{1}+frac{2010}{2}+frac{2009}{3}+...+frac{1}{2011}}c, Tính : frac{left(1+2+3+...+99+100right)left(frac{1}{2}-frac{1}{3}-frac{1}{7}-frac{1}{9}right)left(63.1,2-21.3,6right)}{1-2+3-4+...+99-100}
Đọc tiếp
a, Tính : \(\frac{\left(13\frac{1}{4}-2\frac{5}{27}-10\frac{5}{6}\right).230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{10}+\frac{10}{3}\right):\left(12\frac{1}{3}-14\frac{2}{7}\right)}\)
b, Tính : \(P=\frac{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{2012}}{\frac{2011}{1}+\frac{2010}{2}+\frac{2009}{3}+...+\frac{1}{2011}}\)
c, Tính : \(\frac{\left(1+2+3+...+99+100\right)\left(\frac{1}{2}-\frac{1}{3}-\frac{1}{7}-\frac{1}{9}\right)\left(63.1,2-21.3,6\right)}{1-2+3-4+...+99-100}\)
\(\dfrac{\left(13\dfrac{1}{4}-2\dfrac{5}{27}-10\dfrac{5}{6}\right).230\dfrac{1}{25}+46\dfrac{3}{4}}{\left(1\dfrac{3}{10}+\dfrac{10}{3}\right):\left(12\dfrac{1}{3}-14\dfrac{2}{7}\right)}\)
\(\dfrac{\left(1+2+3+...+99+100\right)\left(\dfrac{1}{2}-\dfrac{1}{3}-\dfrac{1}{7}-\dfrac{1}{9}\right)\left(63.1,2-21.3,6\right)}{1-2+3-4+.....+99-100}\)
câu thứ 2 =0 vì (63.1,-21.3,6)=0
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Tính
a. \(\frac{\left(13\frac{1}{4}-2\frac{5}{7}-10\frac{5}{6}\right).230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{10}+\frac{10}{3}\right):\left(12\frac{1}{3}-14\frac{2}{7}\right)}\)
\(\frac{\left(13\frac{1}{4}-2\frac{5}{7}-10\frac{5}{6}\right).230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{10}+\frac{10}{3}\right):\left(12\frac{1}{3}-14\frac{2}{7}\right)}=\frac{\left(\frac{53}{4}-\frac{19}{7}-\frac{65}{6}\right).\frac{5751}{25}+\frac{187}{4}}{\left(\frac{13}{10}+\frac{10}{3}\right):\left(\frac{37}{3}-\frac{100}{7}\right)}\)
\(=\frac{\left(\frac{1113}{84}-\frac{228}{84}-\frac{910}{84}\right).\frac{5751}{25}+\frac{187}{4}}{\left(\frac{39}{30}+\frac{100}{30}\right):\left(\frac{259}{21}-\frac{300}{21}\right)}\)
\(=\frac{\frac{-25}{84}.\frac{5751}{25}+\frac{187}{4}}{\frac{139}{30}:\frac{-41}{21}}\)
\(=\frac{\frac{-1917}{28}+\frac{1309}{28}}{\frac{139}{30}.\frac{-21}{41}}\)
\(=\frac{\frac{-608}{28}}{\frac{-973}{410}}=\frac{-152}{7}.\frac{410}{-973}=\frac{62320}{6811}\)
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Tính:
\(E=\frac{\left(13\frac{1}{4}-2\frac{5}{27}-10\frac{5}{6}\right).230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{7}+\frac{10}{3}\right):\left(12\frac{1}{3}-14\frac{2}{7}\right)}.\)