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16.2÷(8.1十1.9)x0.2的地等式

解: 1()+8()=9() 或者1()+8()=10() 1()+8()=66 () 里填0到9 无解

2+0.8=2.8 16.8/0.7+1.47/0.7=2.4+2.1=4.5

11-9=2。。。。。。。。。

(1)=7/9(2)=3/2(3)=3

(1)200+808-0-8=1008-8=1000(2)(8+8+8-8÷8)×88-8-8=23×88-8-8=2024-8-8=2008

①(1.58+2)×(100-99.9)÷0.01 =3.58×0.1÷0.01 =0.358÷0.01=35.8②9.8×10.1=9.8×10+9.8×0.1=98+0.98=98.98③[4.8+1÷(3.5-3.46)]×0.2 =[4.8+1÷0.04]×0.2 =29.8×0.2=5.96 ④9.18-3.93+2.07=5.25+2.07=7.32⑤0.125×3.2×2.5=(0.125×8)×(0.4×2.5)=...

9.716-[81.9-(3.77+15.4)÷□]×1.2=0 9.716=[81.9-(3.77+15.4)÷□]×1.2 81.9-(3.77+15.4)÷□=9.716/1.2=8.1 (3.77+15.4)÷□=81.9-8.1=73.8 □=(3.77+15.4)/73.8=19.17/73.8=0.26

5x((8+16)/4 -2)=20

1X1X1X1=1 2÷2+ 2÷2=2 3X3-3-3=3 (4-4)X4+4=4 (5-5)X5+5=5 (6-6)X6+6=6 (7-7)X7+7=4 (8-8)X8+8=8

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