摘要： 6+2+5= 12-10+8= ?2+5+8= 9-5+8= 5+3+6= 18-10+8=
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| 10-6.5= | 0.35+0.64= | 7.5-0.35= | 2.1+25.4= |
| 0.4×0.5= | 25×0.4= | 9.85×0= | 7.25×3= |
| 0.85÷10= | 0.45÷0.09= | 7.8÷7.8= | 12.5÷25= |
| 40-5= | 3+4-6= | 4+11-7= | 12-6= |
| 15-8+2= | 90-60= | 2+3+14= | 32-20= |
| 36+5= | 6+6-2= | 4+9= | 15-8+30= |
| 27+8= | 12-8+7= | 18-9+10= |
| 1.8+0.5= | 2.5-0.1= | 4.8-0.2= | 74+71= | ||||||||||||
| 48+10= | 24÷12= | 68÷0.68= | 94.7÷0.1= | ||||||||||||
| 61.8÷0.6= | 0.8×6.7= | 3÷8= | 0.12×3= | ||||||||||||
| 32= | 8.2-2.8= | 3.5÷0.7= |
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5.3+0.5= | 46+18= | ||||||||||||
| 8.5-1.5= | 69+10= | 28.8+0.4= | 40.5÷0.5= | ||||||||||||
| 92.7÷0.3= | 0.5×1.3= | 16×0.5= | 4.4+0.1= | ||||||||||||
| 6.1-0.1= | 3.3+0.6= | 33.2÷0.4= | 1÷0.25= | ||||||||||||
| 1.5×4= | 6.5+1.35= | 1.3-1.2= |
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5.7-1.7= | 0.35+0.75= | ||||||||||||
| 0.2×1.1= | 1.6÷0.4= | 10÷4= | 3.4÷0.2= | ||||||||||||
| 52÷13= | 57÷19= | 3.7-0.8= | 29+92= | ||||||||||||
| 8.2+0.7= | 6.5-5.6= | 4.8÷0.3= | 33= | ||||||||||||
| 1.25×8= |
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| 2.1÷0.3= | 3.2×3= | 2.8-1.8= | 0.9×6.2= |
| 4.3+5.8= 10.1 10.1 |
3.6+6.4= 10 10 |
0.74-0.34= 0.4 0.4 |
0.9-0.25= 0.65 0.65 |
| 5×4= 20 20 |
0.21×3= 0.63 0.63 |
0.64÷0.8= 0.8 0.8 |
0.48÷0.12= 4 4 |
| 88÷8= 11 11 |
1.1×9= 9.9 9.9 |
1÷0.25= 4 4 |
0÷0.4= 0 0 |
| 15÷0.3×0.1= 5 5 |
0.4÷0.2= 2 2 |
（0.7+0.8）×3= 4.5 4.5 |
7×1.2+0.8= 9.2 9.2 |
| 1.8×4-1.2= 6 6 |
（2.6-1.8）×0.5= 0.4 0.4 |
4+3.2÷0.8= 8 8 |
0.72÷72-0.1= -0.09 -0.09 |
| 7.5÷2.5-0= 3 3 ． |