文档介绍：19-11 =
26- 4=
99-24=
29- 8=
88-77=
50-50=
24-13=
10+20=
14+25=
31-11 =
17- 7=
19-12=
88-80=
25-4=
99-23=
24-13=
15+14=
90-10=
20+8=
25+33=
18+11 =
28+2=
29+1 =
25+25=
26-10=
12+5=
28+11=
25+12=
23-3=
12+10=
16+13=
24+4=
19+11=
17-12=
18-8=
19-6=
29+10=
72-10=
20+30=
99-98=
12+17=
60-40=
17-17=
90-40=
16+54=
20-10=
70-50=
50-30=
60+30=
12+33=
28+6=
16+44=
20+44=
50-50=
19-18=
18-15=
88+12=
66-16=
90-30=
65-25=
50-20=
87-7=
80+9=
18-13=
13+17=
15+53=
16+13=
14+22=
89-80=
14+26=
56-40=
66-20=
99-33=
66-46=
19+60=
17-( )=0
17-14=
15-3=
80+4=
26-16=
19-( )=13
27-14=
18+( )=20
14+( )=27
67-12=
16-( )=12
65-33=
65+25=
24+24=
8+( )=16
10+( )=50
65+( )=70
()-20=50
40+( )=60
20+( )=30
87-33=
16-6=
80-( )=0
75-25=
30+30=
69+ 3=
4 +50=
18- 9=
82-1 =
55+25=
9 +43=
29-13=
90+10=
34+16=
17+16=
100-4=
83-11 =
87-10=
83-19=
22+40=
82-15= 23+16= 26+( )=66
60-16=
47- 6=
59+10=
22- 9=
!"■■ ■■ ■■
15+ 8=
i
72- 2=
49+ 7=
25- 5=
64+ 5=
69+13= 48+13=
12+10=
66-15=
29-13=
88-18=
26+ 3=
99+仁
50+50=
77-15=
26+38=
34+12=
28+ 9=
8 +12=
27+14=
89
87
4=
12=
73+ 6=
9 + 6=
59- 6=
19- 6=
21- 5=
80-20=
12- 7=
85-16=
60-12=
67- 7=
29-13=
29-10=
99-66=
70+20=
13- 8=
100-( )=80
55+33=
86+9=
16+( )=56
67
15=
35-16=
4 一-…-_…-
10+19=
44-13=
51-12=
98-18=
39+ 2=
68+ 5=
33+11=
56+16=
23- 4=
23-( )=18
34+12=
66+5=
41-( )=30
44+( )=60
47-30=
24+9=
86-12=
16-11 =
4——
22-11 =
97-17=
29-19=
30+12=
30+70=
16+ 3= 寸—--
60-20=
”丁
82- 6=
70-( )=20
.1
21+47=
r---
9 +54=
73-44=
94-90=
90=
21+45=
88-69=
16+74=
16+76=
42+13=
26+27=
75-7 仁 72+13=
5=
71-7=
5=
9=
45-42=
100-40=
81- 9=
29-14=
80-43=
71-43=
72-67=
■■ ■■
44+17=
7-4=
i
97-23=
18+76=
75-33=
67+30=