一.計算下面各題。,,

6.9＋4.8＋3.1,0.456＋6.22＋3.78,15.89＋(6.75－5.89)

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4.02＋5.4＋0.98,5.17－1.8－3.2,13.75－(3.75＋6.48)

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3.68＋7.56－2.68,7.85＋2.34－0.85＋4.66,35.6－1.8－15.6－7.2

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3.82＋2.9＋0.18＋9.1,9.6＋4.8－3.6,7.14－0.53－2.47

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5.27＋2.86－0.66＋1.63,13.35－4.68＋2.65,73.8－1.64－13.8－5.36

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47.8－7.45+8.8,0.398+0.36+3.64,15.75+3.59－0.59+14.25

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66.86－8.66－1.34,0.25×16.2×4,(1.25－0.125)×8

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3.6×102,3.72×3.5＋6.28×3.5,36.8－3.9－6.1

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15.6×13.1－15.6－15.6×2.1,4.8×7.8＋78×0.52,32＋4.9－0.9

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4.8×100.1,56.5×9.9＋56.5,7.09×10.8－0.8×7.09

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25.48－(9.4－0.52),4.2÷3.5,320÷1.25÷8

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18.76×9.9＋18.76,3.52÷2.5÷0.4,3.9－4.1＋6.1－5.9

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5.6÷3.5,9.6÷0.8÷0.4,4.2×99＋4.2

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17.8÷(1.78×4),0.49÷1.4,1.25×2.5×32

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15.2÷0.25÷4,0.89×100.1,146.5－(23＋46.5)

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3.83×4.56＋3.83×5.44,4.36×12.5×8,9.7×99＋9.7

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27.5×3.7－7.5×3.7,8.54÷2.5÷0.4,0.65×101

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(45.9－32.7)÷8÷0.125,3.14×0.68＋31.4×0.032,5.6÷1.25÷0.8÷2.5÷0.4

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7.2×0.2＋2.4×1.4,8.9×1.01,7.74×（2.8－1.3）＋1.5×2.26

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3.9×2.7＋3.9×7.3,18－1.8÷0.125÷0.8,12.7×9.9＋1.27

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21×（9.3－3.7）－5.6,15.02-6.8-1.02,5.4×11-5.4

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2.3×16+2.3×23+2.3,9.43-（6.28-1.57）,3.65×4.7－36.5×0.37

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46×57＋23×86,13.7×0.25－3.7÷4,2.22×9.9+6.66×6.7

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101×0.87-0.91×87,10.7×16.1-15.1×10.7,0.79×199

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4.8+8.63+5.2+0.37,5.93+0.19+2.81,1.76+0.195+3.24

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2.35+1.713+0.287+7.65,1.57+0.245+7.43,6.02+3.6+1.98

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0.134+2.66+0.866,1.27+3.9+0.73+16.1,7.5＋4.9－6.5

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3.07－0.38－1.62,1.29＋3.7＋2.71＋6.3,8－2.45－1.55

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3.25＋1.79－0.59＋1.75,23.4－0.8－13.4－7.2,0.32×403

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3.2＋0.36＋4.8＋1.64,1.23＋3.4－0.23＋6.6,0.25×36

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12.7－（3.7＋0.84）,36.54－1.76－4.54,0.25×0.73×4

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7.6×0.8＋0.2×7.6,0.85×199,0.25×8.5×4

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1.28×8.6＋0.72×8.6,12.5×0.96×0.8,10.4－9.6×0.35

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0.8×（4.3×1.25）,3.12＋3.12×99,28.6×101－28.6

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0.86×15.7－0.86×14.7,2.4×102,2.31×1.2×0.5

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30.8÷[14－(9.85＋1.07)],[60－(9.5＋28.9)]÷0.18,2.881÷0.43－0.24×3.5

20×[(2.44－1.8)÷0.4＋0.15],28-(3.4+1.25×2.4),2.55×7.1+2.45×7.1

777×9+1111×3,0.8×〔15.5-(3.21+5.79)〕,（31.8+3.2×4）÷5

31.5×4÷(6+3),0.64×25×7.8+2.2,2÷2.5+2.5÷2

194－64.8÷1.8×0.9,36.72÷4.25×9.9,5180－705×6

24÷2.4－2.5×0.8,(4121+2389)÷7,671×15-974

469×12+1492,405×(3213-3189),3.416÷（0.016×35）

0.8×[(10－6.76)÷1.2],19.4×6.1×2.3,5.67×0.2-0.62

18.1×0.92+3.93,0.0430.24+0.875,0.4×0.7×0.25

0.75×102,100-56.23,0.78+5.436+1

30.8÷[14－(9.85＋1.07)],[60－(9.5＋28.9)]÷0.18,2.881÷0.43－0.24×3.5

20×[(2.44－1.8)÷0.4＋0.15],28-(3.4+1.25×2.4),2.55×7.1+2.45×7.1

777×9+1111×3,0.8×〔15.5-(3.21+5.79)〕,（31.8+3.2×4）÷5

31.5×4÷(6+3),0.64×25×7.8+2.2,2÷2.5+2.5÷2

194－64.8÷1.8×0.9,36.72÷4.25×9.9,5180－705×6

24÷2.4－2.5×0.8,(4121+2389)÷7,671×15-974

469×12+1492,405×(3213-3189),3.416÷（0.016×35）

0.8×[(10－6.76)÷1.2],19.4×6.1×2.3,5.67×0.2-0.62

0.4×0.7×0.25,0.75×102,100-56.23

4.07×0.86+9.12.5,18.1×0.92+3.93,0.0430.24+0.875

0.78+5.436+1,4.07×0.86+9.12,95÷（64-45）

3/7×49/9-4/3,14×8/7–5/6×12/15,178-145÷5×6+42

8/9×15/36+1/27,17/32–3/4×9/24,812-700÷（9+31×11）

12×5/6–2/9×3,3×2/9+1/3,85+14×（14+208÷26）

8×5/4+1/4,5/7×3/25+3/7,（284+16）×（512-8208÷18）

6÷3/8–3/8÷6,3/14×2/3+1/6,120-36×4÷18+35

4/7×5/9+3/7×5/9,1/5×2/3+5/6,（58+37）÷（64-9×5）

5/2-（3/2+4/5）,9/22+1/11÷1/2,(6.8-6.8×0.55)÷8.5

7/8+（1/8+1/9）,5/3×11/5+4/3,0.12×4.8÷0.12×4.8

9×5/6+5/6,45×2/3+1/3×15,（3.2×1.5+2.5）÷1.6

3/4×8/9-1/3,7/19+12/19×5/6,6-1.6÷4

7×5/49+3/14,1/4+3/4÷2/3,7.2÷0.8-1.2×5

6×（1/2+2/3）,8/7×21/16+1/2,6.5×（4.8-1.2×4）

8×4/5+8×11/5,101×1/5–1/5×21,10.15-10.75×0.4-5.7

31×5/6–5/6,50＋160÷40,5.8×（3.87-0.13）+4.2×3.74

9/7-（2/7–1