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1、三、三、15 的加减法的加减法13 24 1 41322共有共有 3 个。个。22452331 加加 2 等于等于 31加号加号+= 32等号等号加加 法法43 + 1 = 43 加加 1 等于等于 454 14 + 1 = 551 2 3 4 5。、 、63 + 2 = 52 + 3 = 51.733 减减 1 等于等于 2减号减号1- -= 2减减 法法84 - - 2 = 4 减减 2 等于等于 2295 - - 2 = 31、2、3、 4、5。1、2、3。253105 - - 1 =45 - - 4 =111121.2 + 1 = 32 + 2 = 4133. 2 + 1 = 33 +
2、 2 = 51 + 3 = 4144.41 + =353 + =2155.3 - - 2 =14 - - 1 =3167. 3 - - 2 =14 - - 1 =32 - - 1 =11724 - - =245 - - =18.181 + 3 = 414 - - =39.1910. 2 + 1 = 32 + 2 = 41 + 4 = 53 - - 2 =14 - - 2 =25 - - 4 =120210021223 - - 3 = 4 + 0 = 455 - - 0 = 0233 - - 0 =34 - - 0 =40 + 2 = 20 + 0 = 05 - - 4 =11 - - 1 =0
3、24251. ( )( )( )( )( )( )5 2 0 262. 从小到大排一排。从小到大排一排。431052273. 3 - - 1 =23 - - =13 - - =032284. 3 + =300 + =33295. 34 - - =124 - - =214 - - =304 - - =4306. 看谁算得都对。看谁算得都对。2 - - 0 =5 - - 2 =3 + 1 =5 - - 4 =23413 + 0 =4 - - 4 =5 - - 3 =2 + 3 =30250 + 5 =4 + 1 =4 - - 2 =4 - - 3 =5521317. 12345328. 比比 多多_。比比 少少_。2233
