\(=1+1+0,2+5+6+7+8+9+11+11,988\)
\(=60,188\)
=1+1+0,2+6+7+8+9+11+11,988
=55,188
\(=1+1+0,2+5+6+7+8+9+11+11,988\)
\(=60,188\)
=1+1+0,2+6+7+8+9+11+11,988
=55,188
Đúng ghi Đ, sai ghi S vào chỗ chấm:
a) \(\frac{3}{7}+\frac{1}{3}x\frac{3}{7}=\frac{16}{21}x\frac{3}{7}=\frac{16}{49}\) ......
b)\(\frac{5}{9}+\frac{1}{5}x\frac{5}{6}=\frac{5}{9}x\frac{1}{6}=\frac{13}{18}\) ......
c)\(\frac{13}{9}-\frac{7}{9}:\frac{2}{3}=\frac{6}{9}:\frac{3}{2}=1\) ......
d)\(\frac{11}{8}-\frac{5}{8}:\frac{3}{4}=\frac{11}{8}-\frac{5}{8}x\frac{4}{3}=\frac{11}{8}-\frac{10}{24}=\frac{23}{24}\) ......
bài 1 : tính phân số:
a) \(\frac{5}{7}+\frac{4}{9}=?;\frac{4}{5}-\frac{2}{3}=?;\frac{9}{11}+\frac{3}{8}=?;\frac{16}{25}-\frac{2}{5}=?\)=?
b)\(5+\frac{3}{5}=?;10-\frac{9}{16}=?;\frac{2}{3}-\left(\frac{1}{6}+\frac{1}{8}\right)=?\)
c)\(\frac{5}{7}+\frac{7}{6}=?;\frac{7}{12}+\frac{17}{18}=?;\frac{9}{8}+\frac{15}{32}=?;4+\frac{35}{45}=?\)
d)\(\frac{11}{4}-\frac{15}{16}=?;\frac{5}{6}-\frac{5}{8}=?;\frac{196}{64}-2=?;3-\frac{13}{9}=?\)
e)\(\frac{8}{5}+\frac{7}{6}+\frac{5}{9}-2=?;3-\frac{5}{6}-\frac{4}{9}+\frac{32}{24}=?\)
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+..........+1000
3+1+9+6+0+8+5+7+999+7654+9087=?
1+2+4+6+7+8+9+x=8*5+12x
\(\frac{1+2+3+4+5}{6+7+8+9+10}\)và \(\frac{11+12+13+14+15}{5+6+7+8+9}\)
So sánh nhé các bạn
Bài 1:Tính nhanh
2/19 + 4/5 +1 7/9 + 1/5 1/11 + 2/11 + 3/11 + 4/11 + 5/11 + 6/11 + 7/11 + 8/11 + 9/11 + 10/11
Bài 2:Tìm giá trị của y trong mỗi biểu thức sau
y : (23 + 27) = 9 1000 : (y x 25) = 8
133 : (190 : y) = 7 450 : (y + 42) = 9
CÁC BẠN GIẢI GIÚP MÌNH NHA !!!
1*2*3*4*5*6*7*8*9*10*1+1000=
1+2+3+4+5+6+7+8+9+...+1000 = ?