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500以内加减法
7/1
100+200=
200–120=
400-200=
70+200=
300+200=
250–20=
300+45=
230+100=
200+200=
630–70=
130+100=
20+200=
400+100=
400–100=
500–100=
40+100=
100+80=
430–30=
200–100=
100+260=
7/2
200+30=
500–300=
250–200=
480–100=
70+100=
70–30=
300+200=
200+50=
100+50=
80–40=
100+90=
300+55=
300+40=
90–4=
200+60=
500-20=
100+50=
70–5=
400+40=
480–30=
7/3
200+60=
360–300=
490–100=
290–200=
400+40=
400–200=
70–40=
30+410=
80+20=
180–20=
89–23=
500–100=
300+60=
70–60=
60–20=
290–200=
200+50=
500–400=
120+300=
360–200=
7/4
30+40+20=
100–90+80=
50+30–40=
100+50+200=
70–50+400=
90–70+200=
50+40–60=
300+40+20=
100–30+200=
100+60+20=
90–70+200=
100–80+400=
100+80–40=
90–20–40=
80–60+50=
100–90+50=
200+200+60=
90–80+200=
60–50+70=
90–60+100=
7/7
300+100+40=
100–0+50=
400+30+30=
100–50–30=
90–20–60=
500–300+50=
90–10+200=
200+80–90=
80–20–10=
100–80+80=
100–50–10=
100+50+200=
()+50=250
100–()=70
80–()=50
()–30=60
90+()=100
10+()=80
()+70=90
()+60=80
7/8
200+()=400
()–300=200
()+300=390
()–300=100
()+100=500
250–()=100
()+300=400
80–()=30
300+()=400
300–()=200
()–300=200
60–()=20
()+300=500
()–40=300
500–()=100
()–400=100
()+200=500
()–200=200
400+()=500
()+100=130
7/9
11+20=
35+20=
80+20=
64+23=
30+22=
36+20=
30+56=
43+26=
20+23=
20+27=
20+72=
13+60=
41+10=
40+15=
50+40=
34+64=
12+80=
10+81=
10+80=
25+70=
7/10
20+30=
20+38=
20+30=
20+69=
70+13=
53+12=
70+29=
76+10=
10+54=
19+50=
34+51=
30+44=
32+40=
32+40=
30+49=
50+46=
17+50=
22+53=
20+55=
20+35=
7/11
20+65=
20+64=
28+60=
36+22=
40+48=
49+40=
44+40=
50+28=
80+23=
88+21=
60+10=
83+15=
32+60=
30+60=
47+20=
30+29=
24+50=
19+50=
23+50=
41+18=
7/14
30+40+21=
30+48+20=
30+42+20=
23+40+20=
80–50+42=
70–40+48=
70–30+40=
70–60+49=
100–30+25=
90–30+7=
80–30+21=
90–30+22=
10+80–40=
50+25–30=
17+80–40=
20+80–40=
20+25+60=
70+20+5=
9+20+60=
20+21+62=
7/15
30+14+40=
50+13+6=
30+11+40=
35+10+46=
90–20–60=
97–20–60=
90–20–60=
90–20–60=
80–20–10=
89–20–10=
80–20–10=
80–20–10=
()+50=59
80–()=50
100–()=70
90–()=70
90+()=100
()+7=97
80+()=87
10+()=89
7/16
40+()=45
()+31=39
()–57=22
()–30=26
()+10=50
()+42=48
90–()=10
86–()=30
30+()=40
()–30=20
30–()=20
74–()=50
()+30=34
80–()=10
()–46=30
()–300=50
()+70=75
40+()=45
()–29=20
()–100=70
7/17
19+22=
35+57=
80+20=
64+27=
38+32=
36+17=
37+56=
47+26=
23+68=
28+28=
19+72=
23+69=
42+58=
68+15=
50+47=
28+64=
18+63=
16+65=
29+71=
25+72=
7/18
29+37=
47+38=
27+38=
20+66=
77+18=
53+38=
76+19=
46+53=
16+59=
19+15=
16+55=
37+47=
37+48=
35+18=
43+49=
59+67=
36+55=
39+53=
26+55=
20+35=
7/21
28+68=
27+63=
28+66=
34+28=
49+43=
49+47=
47+43=
56+89=
86+5=
49+21=
60+32=
85+15=
23+69=
36+26=
47+25=
36+29=
25+57=
39+56=
29+57=
44+48=
7/22
30+41+18=
19+34+20=
30+40+19=
18+63+20=
80–50+41=
70–40+24=
70–30+24=
70–60+81=
100–30+22=
90–30+37=
80–30+21=
90–30+22=
9+85–40=
50+22–30=
19+80–40=
20+38–40=
20+26+36=
70+19+5=
91+2+60=
20+27+6=
7/23
3+29+40=
50+19+6=
30+64+5=
35+18+4=
90–20–60=
90–20–60=
90–20–60=
90–20–60=
89–20–10=
80–20–10=
80–20–10=
80–20–10=
()+5=53
80–()=50
100–()=70
90–()=70
90+()=100
()+7=92
78+()=87
6+()=84
7/24
6+()=45
()+3=73
()–57=20
()–30=26
()+9=52
()+9=48
90–()=10
80–()=30
30+()=49
()–30=20
30–()=20
70–()=50
()+8=34
80–()=10
()–40=30
()–30=50
()+7=75
4+()=42
()–20=20
()–10=70
7/25
25–20=
75–30=
85–20=
67–20=
57–23=
69–33=
89–26=
83–50=
36–30=
36–32=
56–40=
67–36=
48–40=
84–50=
58–30=
76–40=
38–18=
98–84=
59–86=
38–27=
7/28
50–30=
86–30=
58–35=
49–20=
72–70=
92–70=
89–73=
62–30=
80–40=
76–30=
72–50=
58–63=
49–40=
99–46=
89–50=
78–60=
70–50=
81–40=
77–54=
80–50=
7/29
69–60=
79–67=
69–66=
56–20=
84–80=
84–23=
64–21=
74–12=
80–20=
98–20=
68–20=
76–24=
77–70=
87–53=
67–57=
87–70=
49–40=
69–49=
95–30=
88–40=
7/30
100–60+8=
91–60+8=
83–60+68=
96–60+28=
90–70–20=
85–20–20=
87–60–15=
99–60–10=
10+60+2=
20+65+2=
30+54+20=
34+60+2=
90–20–40=
88–20–44=
80–30–50=
83–20–21=
90–80+25=
86–40+26=
78–50+20=
86–30+26=
7/31
10–0+50=
60–10+50=
70–40+54=
39–20+51=
50–30+54=
60–40+58=
65–20+26=
89–50+53=
100–80+85=
90–60+43=
70–50+24=
95–80+84=
100–()=70
()–25=40
()–17=60
()–24=51
70+()=75
()–20=15
()+8=70
()+20=36
8/1
()–30=20
()+40=41
75–()=22
56–()=53
80–()=10
63–()=33
34–()=20
87–()=76
32–()=30
29–()=17
85–()=84
()–27=20
()–40=30
()–35=33
()–27=60
()–20=9
()–20=20
()–70=5
()+25=30
()+30=56
8/4
21–12=
75–27=
85–47=
67–49=
57–28=
60–33=
80–52=
83–25=
31–23=
32–13=
56–18=
60–39=
48–39=
84–65=
52–43=
76–27=
37–18=
90–58=
50–28=
38–19=
8/5
53–35=
80–73=
57–39=
41–22=
72–27=
92–76=
80–29=
60–43=
81–44=
70–34=
72–45=
58–49=
43–24=
91–49=
84–35=
75–26=
71–35=
83–44=
72–25=
80–35=
8/6
64–56=
75–67=
64–56=
56–17=
84–68=
84–28=
60–32=
70–18=
81–22=
98–59=
66–18=
76–28=
70–17=
80–57=
60–57=
86–37=
43–34=
66–47=
97–38=
80–24=
8/7
93–60+28=
91–62+10=
83–16+8=
95–16+8=
92–70–36=
80–42–21=
80–6–55=
96–60–10=
10+65+20=
32+65+20=
43+54+2=
34+60+2=
82–20–40=
88–29–9=
80–53–5=
83–52–22=
60–50+20=
83–40+28=
74–15+21=
82–53+32=
8/8
50–30+5=
60–26+45=
70–42+15=
39–20+65=
56–30+25=
60–43+19=
68–29+16=
84–15+6=
90–80+18=
70–26+10=
70–15+43=
95–78+19=
90–()=70
()–25=40
()–27=60
()–26=54
73+()=95
()–30=15
()+18=70
()+17=36
8/11
()–35=25
()+47=72
75–()=25
56–()=49
86–()=19
62–()=30
34–()=15
87–()=68
32–()=30
26–()=17
85–()=58
()–27=45
()–41=30
()–33=63
()–27=61
()–29=29
()–53=26
()–72=25
()+25=35
()+27=56
8/12
80+25=
180+340=
62-56=
80+17=
360–260=
500–430=
180+52=
330–270=
7+90=
92–57=
60-10=
65–10=
62–45=
250+60=
30+110=
80+150=
35–13=
82–60=
87–59=
500–52=
8/13
160+81=
15+40=
77–78=
63–39=
45-17=
63+57=
29+42=
40+48=
420+29=
85–70=
61–35=
59+92=
45+18=
170+46=
64+39=
350–240=
64+45=
240–170=
92–47=
18+55=
8/14
70+260=
80+16=
24+18=
410–300=
57–28=
260+62=
63–56=
56–48=
89–39=
55–43=
50+36=
260–190=
90+91=
62–48=
65–47=
34+58=
340–160=
88–39=
72–28=
82+150=
8/15
65–16–15=
94–70–17=
10+30+54=
32–17–5=
15+40–27=
26+20+18=
15+17+30=
20+58+14=
32+39–40=
39+40–26=
52–36+18=
40–20+29=
16+50+15=
34+30+60=
91+4–36=
70–38–25=
35–17+37=
72–45+27=
80+16–57=
36–30–5=
8/18
40+41+15=
60+27–44=
8+90+1=
70–35+14=
35+43–56=
23–16+59=
52+18+30=
65–58+24=
30+60+9=
60+12+17=
55–39+26=
60+29–48=
66–40–17=
20–15+58=
60+25–48=
27+60–15=
75–20–23=
32+50+6=
53–24+19=
21–15+57=
8/19
35+()=52
17+()=24
32+()=62
()+19=21
64–()=49
()+14=31
()+10=50
35+()=62
62+()=73
()–15=60
()+45=55
()+29=54
()–15=53
23+()=82
57–()=26
75–()=38
()+38=91
29+()=37
()–6=90
84–()=10
8/20
400–280=
240–70=
54–29=
190+80=
62–54=
37+25=
90+20=
57–36=
35–18=
51+340=
67–39=
260+20=
49–29=
65–18=
82+70=
50+90=
58–46=
97–58=
29+60=
50–43=
8/21
82+15=
97–70=
310–190=
7+93=
66–39=
32–26=
91+8=
45+48=
61+20=
16+38=
460–290=
27+50=
64–38=
29+450=
32–19=
66+170=
53–28=
64+36=
92+30=
58–28=
8/22
420–170=
83–44=
210–130=
72+180=
69–28=
91+9=
35–17=
29+66=
93+60=
33–19=
53–25=
140+80=
65–57=
64–38=
61–42=
32+38=
420+48=
35–25=
65–57=
18+68=
8/25
21+46–25=
57–18+12=
50–16–
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