问题
解答题
口算:
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答案
1.5-0.9=0.6, | 1-0.6=0.4, | 9.8-4.8=5, | 44×200=8800, |
0.94-0.54=0.4, | 4-0.32=3.68, | 0.36+0.64=1, | 0.83+1.2=2.03. |
口算:
|
1.5-0.9=0.6, | 1-0.6=0.4, | 9.8-4.8=5, | 44×200=8800, |
0.94-0.54=0.4, | 4-0.32=3.68, | 0.36+0.64=1, | 0.83+1.2=2.03. |