一、计算题：一、计算题：
3.093.09××3.93.9÷÷2.6 3.0722.6 3.072÷÷6.4+49.7
69.6 69.6÷÷3.23.2÷÷2.5 60.8-362.5 60.8-36÷÷7.5
2929××0.720.72÷÷0.18 2.160.18 2.16÷÷0.450.45÷÷0.16
26.7326.73÷÷0.9-14.52 4.98+8.640.9-14.52 4.98+8.64÷÷2.4
2.052.05÷÷0.82+3
3.6 1.080.82+33.6 1.08××0.80.8÷÷0.27
20.6-8.420.6-8.4÷÷2.1+0.352.1+0.35××2 3.652 3.65÷〔÷〔÷〔0.10.10.1÷（÷（÷（2.12.12.1——————2.092.092.09））〕
11.6+8211.6+82××0.61 9.6-7.140.61 9.6-7.14××1.2
4.54.5××3.23.2××1.6 8.91.6 8.9××1.2-7.5
1.0081.008÷÷0.48+3.76 33.480.48+3.76 33.48÷÷0.930.93÷÷4.5
2.052.05÷÷0.82+3
3.6 13.9-22.780.82+33.6 13.9-22.78÷÷6.8
二、解方程：二、解方程：
7÷X=0.2 9.5X-7X=9
0.7X=56 7X-3X=2.5
3X+15=84 X+(X+5)=75
2X-10=43 29+12X=32
2X-0.24=2.28 6X+6=306
9X-5X=0.64 X
9X-5X=0.64 X÷÷9.5=3.2
X-6.8=12.7 2.5X=100
75X-68X=47.6 11(X+7)=121
8X-68X-6××7=18 7X+97=18 7X+9××3.6=80
9×8+2X=108 2(X-2.6)=8
2X+4X=72 3X=X+100
8(X-3.5)=44 (X+9.2)8(X-3.5)=44 (X+9.2)÷÷5=5.1
(X-9.6)(X-9.6)÷÷4=7.5 9.7X-X=26.1
三、简算题：三、简算题：
5050××0.130.13××0.2 2.330.2 2.33××0.50.5××0.40.4××5
9.789.78××99+9.78 1.6
99+9.78 1.6××7.57.5××1.25
0.450.45××72+4572+45××0.18+4.5 37.580.18+4.5 37.58××97
9.99.9××3.6 1250
3.6 1250××0.037+0.1250.037+0.125××160+12.5160+12.5××2.7
8×7.27.2××1.25 50.8
1.25 50.8××101-50.8
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