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1、20152015 年春铁山垅中心小学五年级年春铁山垅中心小学五年级 数学计算题练习数学计算题练习一、一、 直接写出得数。直接写出得数。= = 2 2= = = = = 101 201 21 41 43 51 97 921 1 = = = = 2= = = 21 51 51 21 51 31 35 52 101= = = = 92 21 76 32 103 41 73 91= = = = 61 41 75 51 92 83 85 31 517 7= = = 1 1 = 75 141 145 143 41 41 43 32 31= = = = 1 1= = = =21 21 31 32 65 65
2、 65 = = = = = = 1 1= = 51 51 54 51 83 83 210.150.6=0.150.6= 740=740= 2 2 = = = =1 1 3 32 2 5 54 4 5 5 = = 1.22.4=1.22.4= = = 0.648=0.648=1 1 2 22 2 3 31 1 3 31 1 4 42 2、解方程或比例。解方程或比例。 (分)(分)0.3= 45 =28 =52 53 54 125= = = 2= =21 54 61 21 65 61X X = = x x = = X X( ()=)=1 1 3 36 6 7 77 7 1 12 21 1 4 47
3、 7 1 16 65 5 2 24 47 7 2 24 4+ = = - = = - =1=13 3 7 73 3 4 45 5 1 12 23 3 8 85 5 6 6三、计算,要写出主要计算过程,能用简便方法的要用简便方法计算。三、计算,要写出主要计算过程,能用简便方法的要用简便方法计算。 51 21 31 21 31 41 51 21 542 2 ()125 127 79 61 65 75 1513 1513 52( ) 2 2 54 83 41 73 74 85 31 1256868 7.57.5 32322.52.5 ( )125 121 21 1 1 51 31 54 115 116 72 61 65 75() ( ) 1513 1513 528 8 9 92 2 9 91 1 3 31 11 1 1 15 51 10 0 1 17 74 4 1 15 55 5 1 17 7( ) + + + + + + ()8 8 9 92 2 9 91 1 3 32 2 9 94 4 5 57 7 9 91 1 5 51 17 7 2 20 07 7 2 20 05 5 1 12 27-7- - - + + + + 6-6- ( - - )5 5 7 75 5 7 74 4 5 51 11 1 1 15 53 3 1 10 03 3 4 42 2 5 5