+0.4=
+
= 
﹣
= 2.5﹣2
+0.8= 
+
= 0.625+
=
﹣1相关试题
| 40×2= |
44×2= |
300×8= |
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32+48= |
240×2= |
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| 240﹣60= |
120×4= |
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450﹣70= |
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70×7= |
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