2) Tô cùng màu các đám mây ghi biểu thức có giá trị bẳng nhau. 8times 4times 2 7times 3times 3 32times 2 8times 8 7times 9 (10-1)times 7

This question is about the properties of multiplication and the ability to simplify numerical expressions. Each of the expressions given needs to be evaluated to determine their numerical value. Then, we can group the expressions that have the same value. <br /><br />1. $8\times 4\times 2$ equals 64.<br />2. $7\times 3\times 3$ equals 63.<br />3. $32\times 2$ equals 64.<br />4. $8\times 8$ equals 64.<br />5. $7\times 9$ equals 63.<br />6. $(10-1)\times 7$ equals 63.<br /><br />So, the expressions $8\times 4\times 2$, $32\times 2$ and $8\times 8$ should be grouped together as they all equal 64. The expressions $7\times 3\times 3$, $7\times 9$ and $(10-1)\times 7$ should be grouped together as they all equal 63.