第一页 小升初数学计算题专项训练 练习一 计算下面各题: (1–61 ×52 )÷97 71 ÷32 ×7 1 21 1 –(91 +1 25 ) 2 54 ×43 –5 01 25÷(87 –65 ) 1 58 +32 –43 (65 –43 )÷(32 +94 ) 83 +31 +41 51 ×[31 ÷(21 +65 )] 12÷(1–73 ) [(1–61 ×52 )÷97 [(1–53 )×52 ]÷4 第二页 (51 –71 )×70 97×9 65 53 ×8+53 ×2 15×73 +15×74 (98 +43 –32 )×72 72×(21 –31 +41 ) (95 +1 31 )×9+1 34 30×(21 –31 +61 ) 12×(21 –31 +41 ) 51 +94 ×83 +65 4–52 ÷1 58 –41 48×(31 –21 +41 ) 2 56 ÷9+2 56 ×98 24×(61 +81 ) 第三页 练习二 /1、用简便方法计算: (53 +41 )×60–27 5–61 –65 98 ×(9+43 )–32 87 ÷32 +87 ×21 54 +85 ÷41 +21 2–98 ×43 –31 30×(61 +52 –21 ) 87 +32 ÷54 +61 10÷101 11 0 +241 21 ÷12 54 ×31 +5
2× 31 +1÷ 43 2、直接写出得数
125= 555×13-111×15= 25×0
25= 125-25+75= 999×15= 10-3
25 +9÷0
125= 55×(3 31 - 4 41 )= 2 0 0 42 0 0 3 ×2005= 101 37 -(4 41 +31 37 )-0
75= 第四页 3、解方程: 1 85 +X = 1 21