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1、-人教版小学五年级数学上册能用简便就简便计算题(DOC)-第 22 页一、能用简便的要简便计算40.25 12.96(9.61.52)854 1030.25 (4.86.4)8 351251.05 (203.472.2)0.2)812.5 0.39136.7 10228 (100.7)(9.6+3.2)0.8 (30094.8)16 3.5(9.88.7) 5.611.4 (0.40.5)0.6894.7 2.47.6 9.85-5.46 0.25 10.2 0.9 83.8+3.8 4 (6.7+6.7+6.7+6.7) 2.5 102 254 240016320.125 7.2 2.8 5
2、1.28 4 4)201 7.2 10.1 4 (12.58.5 0.85) 9916.12 (8.15.6) 0.91 0.4 4.08+4.08 500.2 4.325.436.68 15.176.83.2 2624 12.75(2.756.8) (2.275 0.625)0.28 1.273.90.7316.1 0.2 12.84.95.1 2.4)6.75(0.93.75)4.7 3.9 0.960.280.040.72 9.85-5.46 12.78-(4.97+2.78)3.4+7.6 0.71.65 0.9 35.72- 4.9-(5.72+5.1)7.2 324.90.9 6.
3、3+270.5 3.1+25.78+6.9 (1.250.125)815.25+4.72+4.75+5.28 100.1 34.82(4.82+15.2)9956.5 7.28+0.94+2.72+0.06 0.84 4.85 + 0.35 1.4 99+6.3 8.7 17.4 - 8.7 7.4 5.7 8 1.6+0.4 3.16+4.64 101 99 0.68 (5.2 -3.5)1.25 (1.25+2.5) 8 40.5 0.81 0.18 104.8 (15 2.4)1.8-0.5 213.0.825799 18540 (9.2-6.8)40(9.37+937+937+937)
4、25 1642.1.1.3.7 (0.75-0.356)+9.230.32 (6.4+0.88)0.23)0.04) 2.18+4.65+7.82+5.35+12.5 101 (25+2.5+0.25)4 39+0.25 72 460.33+540.9)(3.82.8)二、用竖式计算1.8+0.02= 37.5=0.28= 0.9= 3.3 2.4= 0.6=0.01=0.13 0.54= 0.43= 40= 6.1=29= 0.8=0.6 0.3= 3.1=66=0.5 0.9 0.35=5 0.7 32.08 0.25=0.54 6.7 13 0.046 1.2= 205.674 7.45
5、 2513=0.036 14= 5.4= 3.3= 0.120.25= 0.43= 9.04= 61.2=2.3=0.2= 22 0.54= 0.73= 4.8 + 2 = 3.9 8.6= 26.7=24=1.3 540.36=36 24=4.2 7.2 7.2 3.4 0.36= 0.16 0.7= 36=3.5= 1-0.01= 1.8=0.05= 1.05=0.4 510.2515= 8116.5-5.6= 0.8= 0.23= 3.6= 0.05 = 12.5= 5.1= 0.308 0.32 2.7+3.13 三、速算与巧算(5)18(8)238(12)19900.16+26420(14)(1+0.28+0.84) (0.28+0.84+0.66)-(1+0.28+0.84+0.66) (0.28+0.84)32(17)16(20)(72357+35728)(5174)(21)98989898999999991010101111111117.5)(23)(67.8+9.48) 1.4) (26)(0.1+0.2+0.3+0.4+1)(28)12403.8+1241400+760700(29)1(23) (34) (45) (19992000)(30)1-2+3-4+5-6+-98+99-100+100
限制150内