在横线上填上“>”“<”或“=”.
7.21________7.212 | 4.933________4.93 |
2.8÷0.6________2.8 | 0.45×1.05________0.45. |
计算(能简算的要简算).
5×32×12.5 | 8×5×(25-18 ) | 4.63+345+5.37+715 | 17×58-58. |
7.21________7.212 | 4.933________4.93 |
2.8÷0.6________2.8 | 0.45×1.05________0.45. |
5×32×12.5 | 8×5×(25-18 ) | 4.63+345+5.37+715 | 17×58-58. |