1、小学毕业计算题(脱式计算,解方程,解比例,简便计算)脱式计算() () 8853114575741 ()(4) (6.254016)3.5 ()() 15() () 4() 7.81.6(1)6.8 2.8(1.50.3) 181.50.50.3 +() ()() 234.4(3.35.9)(+) 1.560.3(0.740.58) 8358118595941 ()() 1.917.869.419 111056() () 15()55 2.050.812.74.5 12.52.54 ()(4)()+ 5() 14.844.085.8 4.8(0.30.2+0.18) ()(2) (1) 0.4
2、(3.850.4)13.8 1() 3.20.25242 () 解方程: 3X1.231.2 XX18 0.4X7103 4(X)8 0.25+X 5X 1.2(3.8X)10.8 X12024()X22 16.45X=4.4 0.8(X0.8)8 XX49X 3X X 1X0.8 XX55110 0.3X X X 5X1X0.6 XX21 XX40 X20 2X4.5889 7X X X X() 6XX9 X8 X XX103.5X1.812.3 5X210 XX3 X 2X51.51.5 (X10)56 0.6X20.45 XX 简便计算:17172.253.14+77.50.314 ()
3、24() 15.72.393.61 1010.674343 2.57.34 1.253.22.5 8.9998.987 1258754 27.51.258 ()1.819.2 ()72 6.13 7.2576240.125 32.627767.4 34521998 11592999(-)21+ ()0.253212.5 761.04+1.0425-1.0424 16 ( 18( 15.64-+4.36- (7.52.37+250.189 60( ( 20-( 解比例:x:10=41:31 0.4:x=1.2:2 4:2=x:3 21:51=41:x 0.8:4=x:8 42:x=3:12 1.
4、25:0.25=x:1.6 9:2=x:8 x:36=3:54 x:32 =6:2524 x:5.4=2:27 45:x=18:26 2.8:4.2=x:9.6 101:x=81:41 2.8:4.2=x:9.6 x:24=43:31 8:x=54:43 85:61=x:121 0.6:42.4:x 6:x15:13 0.6:121.5:x 34:15x:45 1112:452536:x x:1140.7:12 10:50x:40 1.3:x5.2:20 x:3.66:18 13:120169:x 4:608:x 3:8x:64x:0.6:4 ::x x: :0.3: :12 :=12:3 1.25:5=0.75: :=:6 : =: = 4:6=15: