\(\frac{5}{6}\times x=\frac{6}{5}\)
\(x=\frac{6}{5}:\frac{5}{6}\)
\(x=\frac{6}{5}\times\frac{6}{5}\)
\(x=\frac{6\times6}{5\times5}\)
\(x=\frac{36}{25}\)
Bài 1 : Tính
8 x 8 =
6 x 4 =
4 x 4
Bài 2 : < , > , =
4 x 6 7 x 5
5 x 7 8 x 9
3 x 5 6 x 9
1 x 2 = ?
1 x 2 x 3 = ?
1 x 2 x 3 x 4 = ?
1 x 2 x 3 x 4 x 5 = ?
1 x 2 x 3 x 4 x 5 x 6 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 = ?
a)x÷5=5
b)5+x=9
c)66-x=6×6
d)55-x=5×7
4 x 4 =....
5 x 5 = ....
6 x 6 =...
5 x 8 + 5 = ?
4 x 3 + 6 = ?
3 x 8 + 5 = ?
2 x 3 + 6 = ?
1 tick
Tính nhẩm:
3 x 4 = ............... 3 x 5 = ...............
4 x 7 = ............... 5 x 4 = ...............
15 : 3 = .............. 24 : 4 = ..............
5 x 6 = ............... 5 x 9 = ...............
25 : 5 = ..............
Tính thuận tiện
12 x 5 + 3 x 5 + 6 x 5
5 x 10 - 5 x 6 =......
^ ^
5 + 5 x 6 - 30 + 30 x 30 =
