简 便 计 算
212 ×6.6＋2.5×635 1178 －613 －123 4.6+325 +635 +5.4 3415 ×(57 －314 ÷34 )
2.8+549 +7.2+359 438 +2.25+558 +734 725 +457 +235 53611 －1647 +16511
237 +359 －337 +149 +147 0.75+58 +14 +0.375 45 ＋945 +9945 +99945 +999945
445 －(245 +512 ) 5-21417 -1317 48.3-1516 -456 956 ×4.25+414 ÷6
0.625×0.5+58 +12 ×62.5% 3138 ×72513 ÷3138 2.5×(910 +910 +910 +910 )
22×34 +25×75%-7×0.75 0.25×63.5－14 ×1312 6715 ×2.5-212 ×4715
389 +3.125+119 +178 1645 +(247 -1.8) (111+999) ÷[56×(37 -38 )]
49.5×1035 -(50-12 )×0.6 711 ×41419 +5519 ÷147 +711 45×(79 +415
－0.6)
897×38 －37.5%+104×0.375 314 ×(538 －5.375) 3.5×114 +1.25×2710 +3.8÷45
71×99 3755+2996 8439+1001
446+295 888+999 1125-996
299×101 563×999 2100÷20
6÷0.25 72×156-56×72 25×32×125
709×99+709 0.25×48 2.5×37 0.4×213
212×6.6+2.5×635
75.3×99+75.3
4.6×3.7+54×0.37 0.125×34+18×8.25+12.5%
1178―613―123 15
314―4.25―534
19.82―6.57―3.43 4.6+3
25+635+5.4
438+2.25+558+734 9.63
÷2.5÷4
8.37-3.25-(1.37+1.75)
