五年级下数学分数加减法 【2 】盘算题 一.盘算下面各题,能轻便盘算的要轻便盘算. 57 1 52114211947(1) + + (2) - + (3) -( - ) (4) +( - ) 6968541535205407711121342954(5) -( - ) (6) -( - ) (7)6.12+ +2.88+ (8) -( + ) 6103834772424915351873732177787(9) -( + ) (10) + + + (11) + + - (12) 11-8-8 1111891091015121512291351 5 3 1 7 7 1 1 (13) +( + )(14) - + (15) - + - (16) + - 71424123610610943637133131 5 5 1 (17) - ( - ) (18)8+3+4 (19)5-10-5 (20)4-28+14 995375771772025 (21)1+4-12 (22)12+8-24 (23)8-27-27 (24)0.85+7+1.15+7 353173145421 (25)++ (26) -- (27) ++4 (28)+ + 1241210881565355171542733338(29)1--(30)-+ (31)-(-) (32)-(-) 181817513107104855532551552 1 (33) +(-) (34) - + (35)3-9+6 (36)2-7-7 636636212583238113328585(37) +++ (38) 6-- (39) -+- (40) 5-6+3 1111145145311113 7 1 1 321(41) + - (42) -(-) (43)5-(2- 4 ) (44)10+5-3 9934541121751851335(45)9-(6+3 ) (46)7+ (4+7) (47) 8-(8+10) (48) 6+8+6+8 2626551355532(49) + - + (50)-(- ) (51) +(-) (52) - + 37371212108896432713558177111 (53)2-312 (54) + +( + ) (55) -( + ) (56) + - 128812918991218434357532411(57)5--1 (58) +++ (59)-(-) (60) -( +) 77910910757553 31551741755353(61)6+8+6+8 (62)5+9+9+5 (63) 4-3+6 (64) 3-11-11 103311111231 -(2 +3.9) 10 -3 -2.45+1.6 15 -7 -2.8 5 +6 +3 +2.7 1414620653103二.解方程. 1314551412x-8.125=18.125 3x+9=9 x+9=1 2x-6=65-x=4 341737x -(14+7)=2 x-(4-8)=82715xx9966127+x=3 373311219xx14854 2x-88=188 x-99=45 x+314=5.375 31113534-0.6+x=120 x-3= 3 6.75+3x= 18 3.25+4.5-x=5 15.375+5X=20 20204188 本文来源:https://www.wddqw.com/doc/9c2c1fc8adaad1f34693daef5ef7ba0d4b736d74.html