姓名____________时间____________
口算练习题
(1) 16-9+8= (11) 13-9+1= (21) 8+10-15= (31) 7+10+2= (41) 11+1-9=
(2) 18-16+5= (12) 18-5+6= (22) 18-17+5= (32) 16+2-11= (42) 9+11-5=
(3) 6+2+5= (13) 9-8+17= (23) 8-5+9= (33) 10+6-12= (43) 13-5-3=
(4) 1+5-3= (14) 11+2-1= (24) 10-8+7= (34) 19-7+8= (44) 1+9+4=
(5) 16+1-5= (15) 11-11+18= (25) 8+5+3= (35) 11-3+11= (45) 9-4-5=
(6) 15+3-10= (16) 10-2+0= (26) 18-13+14= (36) 19+1-11= (46) 8-7+4=
(7) 14-8+2= (17) 8+12-19= (27) 14-9+8= (37) 1+17-9= (47) 12-8-3=
(8) 6-3+13= (18) 12-11-1= (28) 5+4+8= (38) 7-2+10= (48) 2+18-17=
(9) 17-4-9= (19) 7-5+9= (29) 17-15+4= (39) 5+3+4= (49) 7+4+9=
(10) 16-15+5= (20) 17-11+3= (30) 8+10-5= (40) 16-1-5= (50) 5-1+1=
标准答案:
(1)15 (2)7 (3)13 (4)3 (5)12 (6)8 (7)8 (8)16 (9)4 (10)6 (11)5 (12)19 (13)18 (14)12 (15)18 (16)8 (17)1 (18)0 (19)11 (20)9 (21)3 (22)6 (23)12 (24)9 (25)16 (26)19 (27)13 (28)17 (29)6 (30)13 (31)19 (32)7 (33)4 (34)20 (35)19 (36)9 (37)9 (38)15 (39)12 (40)10 (41)3 (42)15 (43)5 (44)14 (45)0 (46)5 (47)1 (48)3 (49)20 (50)5
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