(山西专版)2018年秋七年级数学上册第一章有理数1.3有理数的加减法1.3.2有理数的减法(一)课时训练(无答案)(新版)新人教版.doc

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11.3.2 有理数的减法(一)基础练习1. 用有理数减法的算式 表示:(1)比海拔高度 3 米低 5 米的海拔高度 (2)比海拔高度10 米低 4 米的海拔高度(3)比海拔高度3.5 米低 1.5 米的海拔高度2. 计算:(1)38; (2)110;(3) (5)(6) ; (4) (10)(20) ;(5) (2)(4) ; (6) (7)(9) ;(7) (6)5; (8) (8)9;(9)0(6) ; (10) (5) 0;(11)06; (12)0100拓 展提高3. 计算:(1)2332; (2)1133;(3) (19)(21) (4) (18)(8) ;(5) (4.3)6 .1; (6) (2.6)10.5;(7)20.8(1.8) ; (8) (1.7)(7. 1) ;(9) ( ) ; (10) ( ) ;(11) ; (12) ;(13) ; (14)

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