1 六年级数学总复习简便计算练习题 一、口算。(10 分) 10-2.65=7.35 0÷3.8= 0 9×0.08= 0.72 24÷0.4=60 67.5+0.25=67.75 6+14.4=20.4 0.77+0.33=1.15-1.4-1.6=5-3=2 80×0.125=80* 81 =10 73 ÷3× 71 = 73 * 31 × 71 = 4 91 二、用简便方法计算下面各题。(90 分,4×20+5×2) 1125-997 998+1246 4 31 +3.2+5 32 +6.8 12 52 -(1 72 +2 52 ) 400÷125÷8 25×(37×8) =1125-(1000-3) =(998+2)+(1246-2) =(4 31 +5 32 )+(3.2+6.8)=12 52 -2 52 -1 72 =400÷(125*8)=25*8*37 =1125-1000+3 =1000+1244 =10+10=20 =10-1 72 =8 75 =400÷1000= 52 =200*37=7400 =125+3=128 =2244 ( 41 -61 )×12 1 43 ×21 54 × 74 34×(2+ 3 41 3 ) 125×8.8 4.35+4.25+3.65+3.75 3.4×99+3.4 =(2 46 -2 44 )*12 =47 ×21 54 × 74 =34×2+34× 3 41 3 =125*(8+0.8) =(4.35+3.65)+(4.25+3.75)=3.4*(99+1) = 2 42 *12 =(47 × 74 )*21 54 =68+13 =125*8+125*0.8 =8+8=16 =3.4*100=340 =1 =1*21 54 =21 54 =81 =1000+100=1100 2 17.15-8.47-1.53 17 65 -3 43 -4 65 97 ÷2 51 +1 15 × 92 0.125×0.25×32 22.3-2.45-5.3-4.55 =17.15-(8.47+1.53) =17 65 -4 65 -3 43 = 97 ÷51 1 +1 15 × 92 = 81 * 41 *32 =22.3-5.3-(2.45+4.55) =17.15-10 =13-3 43 =9 41 = 97 *1 15 +1 15 × 92 =1 =17-7=10 =7.15 =( 97 +92 )×1 15 =1 15 (1 21 1 +1 87 + 2 45 )×72 4.25-3 65 -(2 61 -1 43 ) 187.7×11-187.7 43 87 × 21 +57.125× 21 -0.5 3 415 ×(57 -314 ÷34 ) =1 21 1×72+1 87×72+ 2 45×72 =441 +1 43 -(3 65 +2 61 ) =187.7*(11-1) =43 87 × 21 +57 81 × 21 -21 =3 415 ×(57 -314 * 34 ) =11*6+7*4+5*3 =6-6=0 =1887 = 21 (43 87 +57 81 -1) = 1 54 9 *(57 -72 ) =66+28+15 = 21 *100=50 = 1 54 9 * 73 = 57 =109 2.42÷43 +4.58× 311-4÷3 212 ×6.6+2.5×635 1178 -613 -123 4.6+325 +635 +5.4 2.8+549 +7.2+359 445 -(245 + 512 )...