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口算下面各题.12×30=17×50=100÷20=84÷6=212÷70≈300÷50=51÷7≈368÷60≈91÷7=635÷90≈200÷30≈559÷80≈
题目详情
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口算下面各题. 12×30= | 17×50= | 100÷20= |
84÷6= | 212÷70≈ | 300÷50= |
51÷7≈ | 368÷60≈ | 91÷7= |
635÷90≈ | 200÷30≈ | 559÷80≈ |
口算下面各题. 12×30= | 17×50= | 100÷20= |
84÷6= | 212÷70≈ | 300÷50= |
51÷7≈ | 368÷60≈ | 91÷7= |
635÷90≈ | 200÷30≈ | 559÷80≈ |
口算下面各题. 12×30= | 17×50= | 100÷20= |
84÷6= | 212÷70≈ | 300÷50= |
51÷7≈ | 368÷60≈ | 91÷7= |
635÷90≈ | 200÷30≈ | 559÷80≈ |
口算下面各题. 12×30= | 17×50= | 100÷20= |
84÷6= | 212÷70≈ | 300÷50= |
51÷7≈ | 368÷60≈ | 91÷7= |
635÷90≈ | 200÷30≈ | 559÷80≈ |
口算下面各题. 12×30= | 17×50= | 100÷20= |
84÷6= | 212÷70≈ | 300÷50= |
51÷7≈ | 368÷60≈ | 91÷7= |
635÷90≈ | 200÷30≈ | 559÷80≈ |
12×30=
12×30=
12×30=
▼优质解答
答案和解析
12×30=360, 17×50=850, 100÷20=5, 84÷6=14, 212÷70≈3, 300÷50=6, 51÷7≈7, 368÷60≈6, 91÷7=13, 635÷90≈7, 200÷30≈7, 559÷80≈7. 12×30=360, 17×50=850, 100÷20=5, 12×30=360, 12×30=360, 17×50=850, 17×50=850, 100÷20=5, 100÷20=5, 84÷6=14, 212÷70≈3, 300÷50=6, 84÷6=14, 84÷6=14, 212÷70≈3, 212÷70≈3, 300÷50=6, 300÷50=6, 51÷7≈7, 368÷60≈6, 91÷7=13, 51÷7≈7, 51÷7≈7, 368÷60≈6, 368÷60≈6, 91÷7=13, 91÷7=13, 635÷90≈7, 200÷30≈7, 559÷80≈7. 635÷90≈7, 635÷90≈7, 200÷30≈7, 200÷30≈7, 559÷80≈7. 559÷80≈7.
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12×30=360, | 17×50=850, | 100÷20=5, |
84÷6=14, | 212÷70≈3, | 300÷50=6, |
51÷7≈7, | 368÷60≈6, | 91÷7=13, |
635÷90≈7, | 200÷30≈7, | 559÷80≈7. |
12×30=360, | 17×50=850, | 100÷20=5, |
84÷6=14, | 212÷70≈3, | 300÷50=6, |
51÷7≈7, | 368÷60≈6, | 91÷7=13, |
635÷90≈7, | 200÷30≈7, | 559÷80≈7. |
12×30=360, | 17×50=850, | 100÷20=5, |
84÷6=14, | 212÷70≈3, | 300÷50=6, |
51÷7≈7, | 368÷60≈6, | 91÷7=13, |
635÷90≈7, | 200÷30≈7, | 559÷80≈7. |
12×30=360, | 17×50=850, | 100÷20=5, |
84÷6=14, | 212÷70≈3, | 300÷50=6, |
51÷7≈7, | 368÷60≈6, | 91÷7=13, |
635÷90≈7, | 200÷30≈7, | 559÷80≈7. |
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