六 年 级 数 学 计 算 题 训 练 计算下面各题: (1–61 ×52 )÷97 71 ÷32 ×7 25÷(87 –65 ) 1 58 +32 –43 1 21 1 –(91 +1 25 ) (65 –43 )÷(32 +94 ) 51 ×[31 ÷(21 +65 )] 12÷(1–73 ) [(1–61 ×52 )÷97 [(1–53 )×52 ]÷4 2 54 ×43 –5 01 用 简 便 方 法 计算: (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 ) 4–52 ÷1 58 –41 48×(31 –21 +41 ) (53 +41 )×60–27 256 ÷9+256 ×98 24×(61 +81 ) 5–61 –65 98 ×( 9+43 ) –32 87 ÷32 +87 ×21 5–61 –65 54 +85 ÷41 +21 2–98 ×43 –31 87 +32 ÷54 +61 30×(61 +52 –21 ) 10÷101110 + 24121 ÷12 54 ×31 + 5
2×31 + 1÷43 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×(331 -441 ) = 20042003 ×2005= 10137 - (441 + 3137 )- 0
75= 解 方 程 : 12×(21 –31 +41 ) 51 +94 ×83 +65 185 +X = 1211 2X–91 = 98 X+53 = 107