题目内容
| 直接写数对又快! 1322-199= | 1.87+5.3= | 2.5×2.4= | 1÷
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| 4.9×8.1≈ | 0.32-0.23= | 0.9×(99+0.9)= |
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| 1322-199=1123, | 1.87+5.3=7.17, | 2.5×2.4=6, | 1÷
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| 4.9×8.1≈40, | 0.32-0.23=0.082 | 0.9×(99+0.9)=89.91, |
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| 2 |
| 3 |
| 1 |
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题目内容
| 直接写数对又快! 1322-199= | 1.87+5.3= | 2.5×2.4= | 1÷
| ||||
| 4.9×8.1≈ | 0.32-0.23= | 0.9×(99+0.9)= |
|
| 1322-199=1123, | 1.87+5.3=7.17, | 2.5×2.4=6, | 1÷
| ||||||
| 4.9×8.1≈40, | 0.32-0.23=0.082 | 0.9×(99+0.9)=89.91, |
|
| 2 |
| 3 |
| 1 |
| 5 |