两位数加减一位数的进位加法、退位减法口算练习题(二)
(2014-03-15 10:49:46)
18+6=
23-9=
48+5=
50-6=
7+56=
42-7=
24+6=
93-9=
87+3=
25-6=
58+2=
72-7=
44+7=
84-8=
34+6=
41-6=
76+5=
61-8=
69+5=
96-8=
18+6=
23-9=
48+5=
50-6=
7+56=
42-7=
24+6=
93-9=
87+3=
25-6=
58+2=
72-7=
44+7=
84-8=
34+6=
41-6=
76+5=
61-8=
69+5=
96-8=