直接写出得数453+198=10-0.03=3.4×110=0.1÷0.01=4×0.025=13÷1315=4.5-0.75-14=5×4÷5×4=0.23=9.7+0.03=78×9.9+7.8=2-0.2%=45×0÷0.18=45+43=1-15×4+4×15=0.18÷0.2=3500-700=0.4×0.2=9-0.9=204÷2=0.9+99×0.9=27+16=2.03×2.3=
直接写出得数
| 453+198= | 10-0.03= | 3.4×= | 0.1÷0.01= | 4×0.025= |
| 13÷= | 4.5-0.75-= | 5×4÷5×4= | 0.23= | 9.7+0.03= |
| 78×9.9+7.8= | 2-0.2%= | ×0÷0.18= | += | 1-×4+4×= |
| 0.18÷0.2= | 3500-700= | 0.4×0.2= | 9-0.9= | 204÷2= |
| 0.9+99×0.9= | += | 2.03×2.3= |
答案和解析
| 453+198=651 | 10-0.03=9.97 | 3.4×=0.34 | 0.1÷0.01=10 | 4×0.025=0.1 |
| 13÷=15 | 4.5-0.75-=3.5 | 5×4÷5×4=16 | 0.23=0.008 | 9.7+0.03=9.73 |
| 78×9.9+7.8=780 | 2-0.2%=1.998 | ×0÷0.18=0 | += | 1-×4+4×=1 |
| 0.18÷0.2=0.9 | 3500-700=2800 | 0.4×0.2=0.08 | 9-0.9=8.1 | 204÷2=102 |
| 0.9+99×0.9=90 | += | 2.03×2.3=4.669 |
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