 = |  = |  = |  = |
 = |  = |  = |  = |
 = |  = |  = |  = |
 = |  = |  = |  = |
 = |  = |  = |  = |
 = | 2.5×16= |  = |  = |
 = |  = |  = |  = |
 = | 1.5÷0.05= |  = | 1.5÷0.05= |
 = |  = |  = | 2.5×0.4= |
 = |  = |  = |  = |
 = |  = |  = |  = |
 = |  = |  = | 6.25+1.75= |
 = |  = |  = |  = |
 = |  = |  = |  = |
 = |  = | = |  = |
 = |  = |
= | = | = | = |
= | = | = | =4 |
| =4 | = | =3 | = |
= | =8 | =0 | =9 |
| =4 | = | = | =25 |
= | 2.5×16=40 | = | = |
= | =4 | = | = ， |
= | 1.5÷0.05=30 | =0 | 1.5÷0.05=30 |
= | = | = | 2.5×0.4=1 |
= | =10 | = | =0 |
= | = | = | =1 |
= | = | = | 6.25+1.75=8 |
= | = | = | = |
| = | =11 | = | = |
= | =4 | =25 | =9 |
| =46 | = |
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