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