文档介绍：四年级数学简便计算题第一类:加65+73+135357+288+143272+68+28129+235+171+16517+145+23+35999+99+9+36+7+8+102+103+1049998+3+99+998+3+9第二类:减400-256-44517-53-47284-159-41258-42-16545-167-145478-47-178344-(144+37) 236-第三类:乘45X4X5 238X(125X13)88X125 72177+36)X5X225X9X4250X125)X(4X8)X125125X64X25X4X88X12542X125X8X5 25第四类:乘(12+50)X40 12518X125 25X(40-4) 76X103X44 42 X2599X9 99X78第五类:乘45X37+37X55 28X21+28X79 17X23-23X738X46+64X38 99X32+32167X2+167X3+167X5 3928X225-2X225-6X22542+25)X125+(18+15)X12546+46X59X8+6X39-39X423X2X4+25X4X2+27X1X8+25X8X199X22+33X34360-4-9250-5-2600-12-5800-5-8480-5-48240-5-12420-352400-257800-125第六类:除第七类:加减92+99 197+102 354-108405-99 127-98323+189-123248-86+48 672-36+64(6467-832)+(1832-1467) 1530+(592-530)-192(2+4+6+ +98+100)-(1+3+5+ +97+99)第八类:乘除960X46-48 99000 -121X11 3702 X38-1234640-(16-