\(111+222+\frac{2}{3}x\frac{6}{4}=334\)
\(111+222+\frac{2}{3}x\frac{6}{4}=334\)
Viết số thích hợp vào ô trống:
37 037 x 3 = 111 111
37 037 x 6 = 222 222
37 037 x 9 = 333 333
37 037 x □ = 666 666
222 x 5 = 111 x 2 x 5 = 1110
Đúng hay sai?
3 x 125 x 2 x 8 = (3 x2 ) x (125 x 8) = 6000
Đúng hay sai?
342 x 5 = 340 + 2 x 5 = 340 x 10 = 3400
Đúng hay sai?
25 x 8 x 9 = (25 x 4) x (4 x 9) = 100 x 36 = 3600
Đúng hay sai?
\( Tìm x:\)
\(a, \frac{5}{6}+x×\frac{3}{4}=3\)
\(b,5\frac{1}{6}-x÷\frac{3}{4}=\frac{2}{3}\)
1. Tính nhanh
\(\frac{1}{2}\)x \(\frac{2}{3}\)x \(\frac{3}{4}\)x\(\frac{4}{5}\)x \(\frac{5}{6}\)x\(\frac{6}{7}\)x \(\frac{6}{7}\)x \(\frac{7}{8}\)x\(\frac{8}{9}\text{ }\)x \(\frac{9}{10}\)
\(\frac{1}{2}\): \(\frac{3}{2}\): \(\frac{5}{4}\)\(\frac{6}{5}\):\(\frac{7}{6}\):\(\frac{8}{7}\)
444+222+111-111-2/3 của 60=?????
giải ra giúp mk nha !
`\frac{2}{4}` x `\frac{3}{6}`
*Tìm x:
a,\(X+\frac{1}{2}-\frac{3}{4}=\frac{5}{6}\) b,\(Xx\frac{1}{3}:\frac{2}{5}=\frac{4}{3}\)
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)\(\frac{11}{8}-\frac{5}{8}:\frac{3}{4}=\frac{11}{8}-\frac{5}{8}x\frac{4}{3}=\frac{11}{8}-\frac{10}{24}=\frac{23}{24}\) ......
1.\(\frac{-3}{5}.x=\frac{5}{6}\)
2.\(\frac{2}{4}:x=\frac{6}{8}\)
3.\(\frac{67}{89}.x=\frac{12}{13}\)
