3.56＋4.54＋6.44＋5.46 5.03－0.25－1.75 4.86＋5.24－1.86
8.13＋(1.87－0.5) 23.7－1.6－3.7－8.4 87.4－(21.25＋17.4)－8.75
14.6－9.9 1.9＋1.99＋1.999 19.43－(6.72＋1.43) 12.87－1.34－2.66
2.69－1.35＋3.31－2.65 5.25＋3.76－2.76＋4.75 21.53－(13.64－8.47)
7.34＋2.5＋2.66－1.5 3.25＋1.79－0.59＋1.75 21.3－19.9
0.125×3.69×8 (2.5－0.25) ×4 8.59×101 0.36×15.7－0.36×13.7
0.63×199 60÷48 7.73×0.5＋2.27÷2 4.37＋99×4.37
10.1×38.67－3.867 8.63×25－0.063×250 9.3×10.1 3.99÷0.125÷8
(5.23＋5.23＋5.23＋5.23) ×25 0.25×1.25×0.67×32 2.49×3.8＋0.249×62
54.8－0.3×0.3－3.91 (6.4＋48) ÷0.8 2.5×(4＋8) ×12.5 （12.5－1.25）×8
5.64＋99×5.64 2.5×(4.21＋4.21＋8.42) 1.25×1.86×32×0.25
4.34×0.25＋0.25×5.56＋0.025 (7.2＋54) ÷0.9 56.34÷2－6.34×0.5
11.43÷0.8÷12.5 7.56×101 1.25×2.5×(8＋4)
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