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