1、四年级口算(3)(1)0.5100 (2)4.30210(3)10.99 (4)2.350.81.2(5)2.91.85 (6)2.170.9(7)15915 (8)12581258(9)3.50.4 (10)6.82.4(11)0.80.12 (12)0.270.33(13)5060 (14)900425(15)6.7410 (16)09933(17)354 (18)3756(19)0.17100 (20)4100(21)5.63.6 (22)968(23)12065 (24)80.76(25)25100 (26)2.81.06(27)4.82.9 (28)5.72.7(29)2516 (3
2、0)7.80.7 (31)0.640.4 (32)0.91.1(33)62.31.7 (34)3925 (35)257518 (36)34565(37)7690 (38)207.4(39)600425 (40)24052405(41)030.07 (42)2850 (43)9999 (44)4.364.34(45)924.7 (46)123.48(47)2.93.1 (48)8.34.9(49)3685.9 (50)2.965.04 (51)7.36.5 (52)4.53.7答案(1)0.005 (2)43.02 (3)0.01(4)0.35 (5) 1.05(6)3.07 (7) 150 (
3、8)64 (9)3.9 (10)4.4(11)0.92 (12) 0.6 (13)3000 (14) 9 (15)67.4(16)0 (17)140 (18) 93 (19)17 (20)0.04(21)9.2 (22)12 (23)55 (24)7.24 (25) 0.25(26)3.86 (27)1.9 (28)3 (29)400 (30) 8.5 (31) 1.04 (32)2 (33)2 (34)390 (35)118 (36)410 (37) 0 (38)27.4 (39)6 (40)1 (41)0.37 (42)800 (43)900 (44)43 (45)13.9 (46)8.52 (47)6 (48)3.4 (49)30.9 (50)8 (51)13.8 (52)8.2