0.25×16.2×4 ( 1.25－0.125)×8 3.6×102
3.72×3.5＋6.28×3.5
4.8×7.8＋78×0.52
7.09×10.8－0.8×7.09
64.9×0.125×80
15.6×13.1－15.6－15.6×2.1 4.8×100.1 56.5×9.9＋56.5 16.8×2.1-16.8 0.25×5.78×0.4 3.5×103 1.2×9.1+1.2×0.9 0.8×（0.125+125+1.25） 2.5×0.125×40×80
3.69×9.9 8.6×9+8.6 2.4×0.19+0.24×8.1
4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24
2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98
0.134+2.66+0.866 1.27+3.9+0.73+16.1
3.07－0.38－1.62 8－2.45－1.55 0.32×403
23.4－0.8－13.4－7.2 0.25×36 12.7－（3.7＋0.84）
36.54－1.76－4.54 7.6×0.8＋0.2×7.6 0.25×8.5×4
0.85×199 1.28×8.6＋0.72×8.6 12.5×0.96×0.8
0.8×（4.3×1.25） 3.12＋3.12×99 28.6×101－28.6
（4.23＋6.17）×0.8 0.86×15.7－0.86×14.7 2.4×102
14－7.32－2.68 2.64＋8.67＋7.36＋11.33
（2.5－0.25）×0.4 9.16×1.5－0.5×9.16 3.6－3.6×0.5
4.5÷1.8 4.2÷3.5 930÷0.6÷5
63.4÷2.5÷0.4 4.9÷1.4 3.9÷（1.3×5）
（7.7＋1.54）÷0.7 2.5×2.4 2.7÷45
0.35×1.25×2×0.8 32.4×0.9＋0.1×32.4 15÷0.25
70÷28 15÷（0.15×0.4） 4.25÷2.5×9.9＋0.17
10.4－9.6×0.35 2.31×1.2×0.5 14.9－（5.2＋4.9）
18.32－5.47－4.32
13.4－（3.4＋5.2）
25 × 6.8 × 0.04
23 × 0.1 ＋ 2.3 ×
7.85＋2.34－0.85＋4.66 17.29－5.28－6.29 3.68＋7.56－2.68 0.25 × 32 × 0.125 6.4 × 1.25 × 12.5 9.9 0.45 × 201 0.58 × 10.1 50.2 × 99 4.7 × 9.9 3.6×102
0.25×16.2×4 3.28 × 5.7＋6.72 × 5.7
2.1×99＋2.1 1.7×9.9＋0.17 3.72×3.5 + 6.28×3.5
6.4 × 0.25 + 3.6 ÷ 4 3.75 × 0.5－2.75 ÷ 2
7.3 ÷4 ＋ 2.7 × 0.25 5.26 × 0.125 ＋ 2.74 ÷ 8
6.78×3.6+3.22×3.6 12.5×0.57×0.8
50×0.13×0.2 2.33×0.5×0.4×5
9.78×99+9.78
0.45×72+45×0.18+4.5
8×7.2×1.25
8.42×9.6+0.4×842
1.6×7.5×1.25 37.58×97 ×101-50.8 48×0.25×0.2 50.8 3.6×1.9+36×0.81 0.18＋4.26－0.18＋4.26
0.25×8.5×4 12.5×0.96×0.8 0.25×0.73×4
4.36×12.5×8
3.2×0.25×12.5
4.8×10.1
0.32×403
0.25×16.2×4 0.25×36 3.6×102 3.65×10.1 1.25×2.5×32 (1.25－0.125)×8 0.39×199 0.85×9.9 3.72×3.5＋6.28×3.5 15.6×2.1－15.6×1.1
3.83×4.56＋3.83×5.44 56.5×99＋56.5
7.09×10.8－0.8×7.09 9.7×99＋9.7 4.2×99＋4.2
27.5×3.7－7.5×3.7 3.9×2.7＋3.9×7.3 5.4×11-5.4
2.3×16+2.3×23+2.3 10.7×16.1-15.1×10.7
7.74×（2.8－1.3）＋1.5×2.26 10.6×0.35－9.6×0.35
7.6×0.8＋0.2×7.6 1.28×8.6＋0.72×8.6 0.65×101
8.9×1.01 4.8×7.8＋78×0.52 1.87×9.9＋0.187
3.14×0.68＋31.4×0.032 12.7×9.9＋1.27
3.65×4.7 －36.5×0.37 101×0.87-0.91×87
6.66×3.3+6.66×6.7 7.2×0.2＋2.4×1.4 46×57＋23×86
4.8×7.8＋78×0.52 3.14×0.68＋31.4×0.032
101×0.87-0.91×87 3.65×4.7 －36.5×0.37
2.3×16+2.3×23+2.3 314×0.043＋3.14×7.2－31.4×0.15
5×1.03×0.2 32×1.25 0.45×99
53×10.1 0.125×96 12.5×10.8
25×7.3×0.4 45×21－50×2.1 45×1.58＋5.5×15.8
4.2×6.51＋3.49×4.2 9.99×2.22＋3.33×3.34
12.5×88 0.25×48 12.5×88
0.25×48 48×0.56＋44×0.48 0.279×343＋0.657×279
9.16×1.53－0.053×91.6 314×0.043＋3.14×7.2－31.4×0.15
53×10.1 4.2×6.51＋3.49×4.2 25×7.3×0.4
0.125×96 12.5×10.8 （20－4）×0.25
45×21－50×2.1 45×1.58＋5.5×15.8
9.99×2.22＋3.33×3.34 3.7×1.4×0.05
72×0.81+10.4 1.4×25+3.45
1.5×102 1.25×0.7×0.8 2.7×3.7+0.37×73
8.7×99 0.8×（12.5 – 1.25） 1.25×0.4×80×2.5
50×0.13×0.2 1.25×0.7×0.8 0.3×2.5×0.4
1.25×213×0.8 0.125×64 0.25×36 0.25×0.28
0.125×3.2×2.5 （7.04+2.76）×1.2 （2.5－0.25）×0.4
32.4×0.9＋0.1×32.4 0.86×15.7－0.86×14.7
3.5×2.7-3.5×0.7 3.5×99+3.5 3.5×99
125×32 871×47+871×53
6.4×1.25×12.5 15.12－6.82－8.18
0.76×0.43＋0.24×0.43 5.86×0.4×0.5×0.5
2.9×0.45＋0.29×4.2＋0.029×13
(2)1.9999＋19.999＋199.99＋1999.9＋19999
871×47+871×53 0.78×100.5 1.5×102 1.2×2.5+0.8×2.5
0.125 ×2.5×3.2 0.93×201 （7.04+2.76）×1.2
4.25×0.99+0.01 3.45x29 + 30x3.45 +3.45x31
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