直接写出下面各题的得数．
| 15+8= | 0.5+0.4= | 4-0.9= |  - = |
 × = | 4÷0.8= | 0÷ = | 24×13= |
1- = | 0.45×1000= | 9÷ = | 8.7-7= |
| 786-298= | 3.14×8= |  ÷ = |  += |
| 100×1%= | 25×0.7×4= | 2-2÷3= | （ -0.375）×5= |
| 15+8= | 0.5+0.4= | 4-0.9= | -= |
| ×= | 4÷0.8= | 0÷= | 24×13= |
| 1-= | 0.45×1000= | 9÷= | 8.7-7= |
| 786-298= | 3.14×8= | ÷= | += |
| 100×1%= | 25×0.7×4= | 2-2÷3= | （-0.375）×5= |
，这时积是________．
千克大豆可以榨油
千克，1千克大豆能榨油________千克，要榨1千克油需要________千克大豆．
+0.25+5.6×
-（
）×
]．