简便计算

212×6.6＋2.5×6351178－613－1234.6 325 635 5.43415×(57－314÷34)

2.8 549 7.2 359438 2.25 558 734725 457 23553611－1647 16511

237 359－337 149 1470.75 58 14 0.37545＋945 9945 99945 999945

445－(245 512)5-21417-131748.3-1516-456956×4.25 414÷6

0.625×0.5 58 12×62.5138×72513÷31382.5×(910 910 910 910)

22×34 25×75%-7×0.750.25×63.5－14×13126715×2.5-212×4715

389 3.125 119 1781645 (247-1.8)(111 999)÷[56×(37-38)]

49.5×1035-(50-12)×0.6711×41419 5519÷147 71145×(79 415－0.6)

897×38－37.5% 104×0.375314×(538－5.375)3.5×114 1.25×2710 3.8÷45

71×993755 29968439 1001

446 295888 9991125-996

299×101563×9992100÷20

6÷0.2572×156-56×7225×32×125

709×99 7090.25×482.5×370.4×213

212×6.6 2.5×63575.3×99 75.3

4.6×3.7 54×0.370.125×34 18×8.25 12.5%

1178―613―12315314―4.25―534

19.82―6.57―3.434.6 325 635 5.4

438 2.25 558 7349.63÷2.5÷4

8.37-3.25-(1.37 1.75)