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