问题
解答题
口算:
|
答案
12×30=360, | 75÷25=3, | 420÷70=6, | 21×700=14700, | 11×40=440, |
124÷4=31, | 104×20=2080, | 589-90=499, | 2×7×5=70, | 50×12=600. |
口算:
|
12×30=360, | 75÷25=3, | 420÷70=6, | 21×700=14700, | 11×40=440, |
124÷4=31, | 104×20=2080, | 589-90=499, | 2×7×5=70, | 50×12=600. |