小学数学一年级上册求未知数
中国财贸管理学院-大学生村官心得体会
(  )-3=4 
5+(  )=7 
(  )=13 
6+(
)=12 
(  )-4=5 
(  )+6=14 
(  )-3=1
8-(  )=7 
(  )=14 
6+(  )=13 
7+(
)=17 
8+(  )=18 
7+(  )=16 
(  )-4=0
1+(  )=8 
(  )+2=11 
(  )=10 
(
)+4=9 
(  )+4=17 
(  )+7=12 
(  )-6=4
1+(  )=4 
(  )+6=9 
3-(  )=2 
(
)+4=14 
(  )=12 
(  )+5=12 
10-(  )=5
(  )+9=11 
  )+18=19 
(  )+8=12 
(
)-5=13 
(  )-5=5 
7+(  )=19 
(  )+3=10
9+(  )=16 
(  )+2=6 
5+(  )=15 
8+(
)=10 
(  )+5=14
12+
19-
11-
11+
(
5+(
)=11 
1+(  )=10 
7-(  )=1 
3+(  )=15
5+(  )=14 
(  )+6=11 
(  )-2=2 
13+(
)=14 
1+(  
  )
2-(
9+(  
9+(
4+(  
7+(  
0+(  
)=10 
)=1
)=17 
)=12 
)=16 
)=16 
)=10
8+(  )=17 
(  )=11 
8+(  )=14 
7-(
)=5 
5-(  )=2 
(  )+4=6 
(  )=14 
(
)+2=14 
8+(  
(  
5-(  
(  
8+(
(  
(  )
1+(  
)=13 
)=15 
)=3
)=12 
)=9 
)=19 
+6=16 
)=17
10-(  )=13 
14+(  )=18 
(  )+11=16
10-(  )=4 
4+(  )=12 
(  )+6=18 
10-(
)=8 
2+(  )=17 
(+11=18 
13-10+
17-
14-
11+
6+(  )=9
(  )+7=14 
(  )+8=18 
(  )-4=12 
(
)+5=11 
(  )+7=13 
16+(  )=17 
9+(  )=15
6-(  
8-(  
7+(  
(  )
(  )
(
(  )
4+(  
)=0 
)=6 
)=13
+9=10 
+9=14 
)=15 
-1=12 
)=8
3+(  )=11 
10-(  )=7 
(  )=17 
8+(
)=12 
(  )+5=7 
  )+16=19 
  )+14=16
(  )=12 
(  )=14 
(  )+1=10 
7+(
)=15 
  )+10=12 
(  )+5=14 
(  )7=18
(  )+6=19 
7+(  )=8 
5+(  )=13 
(
)+14=19 
5-(  )=0 
(  )+9=13 
(  )+8=9
6-(  )=5 
(  )+1=5 
(  )+3=14 
16-
14+
18-
(
(1+
(
10+
1+(
)=3 
2+(  )=9 
(  )-6=11 2+(  )=4 17-(  )=15
9+(  )=11 10+(  )=17 (  )+11=14 
(  
3+(
(  )
(  
(  
(  )
4+(  
7-(
)=18 
=12 
+4=7 
)=15 
)=10
-1=8 
=15 
)=2 
(  )-6=2 
(
)+5=14 
2+(  )=13 
6-(  )=1 
(  )+7=10
3-(  )=1 
(  )+8=15 
4+(  )=9 
8+(
)1=19 
5+(  )=8 
(  )+8=14 
6+(  )=13
17-(  )=12 
12+(  )=17 
8+(  )=12 
(
)+14=15 
(  )+1=18 
(  )+11=12 
9+(  )=11
(  )-8=11 
6+(  )=10 
7+(  )=11 
(
)+2=5 
(  )-1=4
11+
)
18-
12-
)
5+(
)=10 
(  )+3=19 
(  )-3=0 
(  )=13 
(
)+2=17 
7-(  )=6 
2+(  )=19 
(  )+5=13
  )+13=19 
(  )+6=12 
8-(  )=3 
19-(
)=18 
(  )-3=11 
(  )-4=6 
(  )+7=11
(  )+7=15 
3+(  )=8 
(  )+1=16 
8+(
)=15 
5+(  )=13 
(  )+10=19 
6+(  )=11
12+(  )=16 
(  )+14=17 
2+(  )=11 
(
)+2=18 
3+(  )=14 
7+(  )=12 
6+(  )=8
(  )+10=10 
(  )-3=5 
(  )+7=19 
(
)=17 
7-(  )=3 
8+(  )=17 
(  )+3=7
1+(  )=16 
(  )-2=14 
(  )-5=11 
8+(
)=11 
14-
(
18-
6+(  )=12
9-(  )=7 
5+(  )=10 
  )+10=14 
(
)+9=12 
3+(  )=4 
10-(  )=0 
(  )=13
7+(  )=15 
10-(  )=1 
(  )+14=18
12-(  )=11 
7+(  )=14 
(  )+13=17 
(
)+4=11 
1+(  )=7 
9+(  )=10 
8-(  )=0
2+(  )=8 
8+(  )=16 
(  )+3=18 
(
)-7=3 
(  )-1=9 
(  )=15 
5+(  )=6 
(
)+2=10 
(  )=15 
(  )=10 
(  )-3=13
6+(  )=7 
9+(  )=17 
7+(  )=9 
9-(
)=2 
  )+13=16 
6+(  )=15 
(  )-1=9 
(
)-8=2 
(  )-2=8 
(  )+3=15 
(  )+4=10
(
11+
(19-
13+
13-
(
)-4=11 
(  )+4=13 
9+(  )=17 
9+(  )=16
(  )+4=12 
9-(  )=4 
18+(  )=19 
9-(
)=1 
5+(  )=18 
6-(  )=4 
  )+15=19
3+(  )=11 
(  )=13 
8+(  )=13 
(
)-5=10 
9+(  )=16 
(  )
(  
(
10-(
2+(  
(  )
(  
4+(  
-2=13
)=10 
)=16 
)=2 
)=10 
+1=10
)=16 
)=10 
(  )
5+(  
(  )
7-(
(  )
(  )
(  )
3+(  
+9=14
)=11 
+9=15 
)=0 
+7=12 
+5=19
+7=11 
)=11 
(  )+12=13 
(  )+4=12
9-(  )=6 
7+(  )=12 
(  )+8=13 
(
)-1=14 
4+(  )=10 
(  )+12=14
(
19-
17-
14+
17-
(  )-1=0 
(  )+11=17 
(
)+6=15 
(  )+4=15 
(  )+1=3 
(  )+3=5
6+(  )=14 
(  )+4=5 
15-(  )=12 
(
)+13=14 
(  )+6=15 
(  )+7=15 
3+(  )=6
10-(  )=5 
17+(  )=19 
(  )+0=10 
9+(
7+(  
(
8+(  
4-(
(
4+(
5+(  
)=12 
)=13 
)=16 
)=14
)=3 
)=12 
)=11 
)=12 
(  
)
  )
9-(  
(  
(  
  )
)
)=12 
+5=18 
+1=15 
)=0 
)=15
)=13 
+8=14 
-4=10 
(  )-4=4 
(
)+4=19 
4+(  )=13 
  )+16=18 
9+(  )=15
(  )=12 
(  )+9=16 
(  )=10 
13+
  
19-  
9+
(
(
2+
9+
((
(
18-
16-
(  )+7=14 
7+(
)=10 
17-(  )=13 1+(  )0=11 
8+(  )=16 10-(
)=3 
5-(  )=1 
18-(  )=10 
  )+10=16
2+(  )=10 
6+(  )=18 
4+(  )=13 
(
)=17 
(  )-7=1 
(  )+9=11 
(  )-6=3 
(
)+9=12 
6-(  )=2 
2-(  )=0 
(  )+9=15
(  )-9=1 
(  )+5=11 
8+(  )=11 
(
)+3=13 
18-(  )=11 
3+(  )=18 
8+(  )=11
(  )+10=13 
7+(  )=11 
(  )+6=17
19-(  )=16 
10+(  )=19 
(  )
6-(
(  )
10+(  
1+(  
5+(  
4+(  
(
)
+5=16 
)=3 
-10=0 
)=10 
)=6
2=17 
)=12 
-2=16
(
19-
)
(  )+10=13 
(
)+10=14 
(  )-8=2 
(  )-3=5 
(  )+7=19
1+(  )=10 
8+(  )=12 
3-(  )=2 
5+(
)=10 
1+(  )=17 
4+(  )=13 
(  )-7=1
(  )-9=1 
5+(  )=14 
5-(  )=0 
(
)+11=16 
  )
(  
(  
  )
  )
1+(
(  
(
-5=10 
)=17 
)=10 
-4=12
+7=15 
)=2 
)=12 
)=1 
6+(  )=9
4+(  )=9 
7+(  )=9 
(  )=16 
(  )+3=5
(  )-9=10 
(  )+7=12 
2+(  )=4 
)+11=17 
6-(  )=4 
2-(  )=0 
(  )-10=0
(  )+5=7 
4+(  )=10 
(  )=13 
5+(
)=11 
(
8+
2+
(
(
5+
10-
17-
(
19-
10-(  )=5 
4-(
)=3 
(  )+2=6 
2+(  )=19 
(  )+14=19
(  )-2=14 
9+(  )=11 
(  )+2=18 
3+(
)=4 
(  )+8=13 
9-(  )=0 
  )+14=17 
)+16=18 
7-(  )=3 
5+(  )=7 
(  )=13
(  )+9=12 
5-(  )=3 
(  )+6=17 
(
)+3=14 
1+(  )=8 
  )+13=14 
(  )+4=7
(  )=15 
6-(  )=3 
1+(  )7=18 
(
)+2=17 
7-(  )=2 
(  )+16=19 
9+(  )=10
7-(  )=1 
6+(  )=13 
7+(  
(  
(
)
7+(  
(  )
8-(  
7+(  
(
)=11 
)=14 
+4=10 
)=13 
+3=18
)=6 
)=16 
)=16 
(
(
10-
(19-
13+
12+
8+(  )=14 
(
)+14=18 
10-(  )=7 
3+(  )=8 
18-(  )=12
2+(  )=10 
19-(  )=12 
19-(  )=14
5+(  
7+(  
3+(
12+(
9-(
14-(
14-(
1+(
)=11
)=11 
)=12 
)=17 
)=1 
)=12
)=13 
)=4 
(  )0=11 
8+(  )=12 
(
)+3=10 
(  )-3=4 
(  )=10 
(  )+7=14
8-(  )=7 
(  )-1=9 
(  )+9=10 
(
)+4=12 
1+(  )=6 
9+(  )=12 
(  )+5=19
(  )+3=15 
7+(  )=15 
(  )+10=12 
2+(
2+(  
6-(  
5+(  
5-(  
(
)
18-(  
13-(  
)=9 
=15 
)=0
)=8 
)=2 
)=10 
)=10 
  
  
  
  
1+
17-
)
+2=14
(  )+7=11 
4+(  )=8 
10+(  )=17
7+(  )=14 
3+(  )=14 
(  )+2=5 
10+(
)=10 
18-(  )=15 
9-(  )=2 
  )+14=16
8+(  )=16 
3+(  )=15 
(  )-3=1 
(
)-2=2 
9+(  )=17 
(  )+1=18 
(  )+8=14
(  )+11=14 
(  )+18=19 
7+(  )=13
18+(  )=19 
6+(  )=14 
3+(  )=11 
7-(
)=0 
9+(  
8+(  
8+(  
4+(  
(
)
(  )
2+(  
5+(  
)=15 
)=14
)=15 
)=13 
+9=16 
-1=12 
)=17
)=13 
(  )-4=0 
18-(  )=14 
10-(  )=3
(  )+4=11 
4+(  )=16 
(  )-6=3 
6+(
)=10 
(  )+7=13 
(
(  )+8=14
9-(  )=7 
(  )+10=16 
8+(  )=16 
(
)+5=11 
(  )+8=9 
11-(  )=10 
(  )+11=18
2+(  )=13 
(  )-3=13 
  )+10=10 
(
)+7=15 
  )+15=19 
(  )=11 
(  )+4=17
2+(  )=11 
2-(  )=1 
(  )+4=12 
7+(
)=15 
5+(  )=6 
8+(  )=17 
(  )-4=5 
(
)+7=11 
9+(  )=16 
6-(  
(  )
6-(
9+(  
6+(  
(  )
(  
9+(  
)=1
-6=2 
)=5 
=12 
=18 
-1=9 
)=17
=13 
7+(  )=8 
(  )-1=4 
(  )+9=15
(  )+14=15 
7-(  )=5 
(  )+1=10 
(
)+3=19 
18-(  )=11 
(
(
12-
)
)<
br>18-
)
(  )-3=11 
(  )+1=3
8-(  )=3 
9+(  )=12 
12-(  )=10 
10+(
)=15 
(  )+5=11 
(  )+7=10 
1+(  
8+(
5+(  
(  )
(  )
(  
(  
(
)=7 
)=11 
)=15 
-6=11 
+6=15
)=14 
2=17 
)=17 
(  
(  
(
)
4+(  
8+(  
7+(  
6+(  
(
)=12 
)=16 
+4=5 
=15 
=11 
=19
=11 
)=19 
(  )-4=11 
(  )+9=11
8+(  )=13 
3+(  )=11 
3+(  )=18 
(
)+9=15 
6+(  )=12 
(  )+13=19 
(  )=12
(  )+6=12 
(  )+5=16 
0+(  )=10 
(
)+9=13 
(  )+4=14 
(  )+1=5 
(  )=18 
17-
5+)
19-
15-
14+
)
)
)
)
17-
11+10+
(  )+4=6 
(
)+1=15 
(  )+11=12 12+(  )=13 
(  )-5=11 5-(
)=1 
19-(  )=18 
(  )+4=9 
(  )+9=11
10-(  )=8 
(  )+5=14 
(  )=15 
(
)-1=0 
4+(  )=10 
(  )+9=12 
  )+12=14
5+(  
14+(  
1+(  
5+(  
6+(
10-(  
7+(  
(  )
=18 
)=17
=10 
=10 
=15 
)=2 
=12 
-4=6
9-(  
7+(  
(  )
10-(
5+(  
(
)
6+(  
14+(  
)=6 
=16 
)=4
=13 
=12 
)=18 
10+(  )=12 
(
)-3=0 
(  )-4=4 
(  )+0=10 
8+(  )=10
(  )+5=14 
(  )-2=13 
(  )+6=16 
16-<
br>(
)
)
)
)
)
)
+4=13 
)
+4=15 
)
11+(  )=12 
4+(
)=11 
8+(  )=11 
8+(  )=13 
7+(  )=12
3+(  )=11 
17-(  )=15 
2+(  )=8 
13+(
)=15 
13+(  )=16 
8+(  )=9 
(  )-1=8
17-(  )=13 
16-(  )=10 
10-(  )=5
8+(  )1=19 
6+(  )=8 
(  )=19 
(
)-5=5 
  )+13=17 
3-(  )=1 
(  )+5=14
(  )+1=16 
  )+10=19 
9+(  )=17 
(
)+7=14 
6+(  )=7 
9+(  )=16 
(  )-7=3
(  )-1=14 
9+(  )=11 
(  )+5=18 
(
)
(  )
6+(  
(  )
19-(  
(  )
(
)
4+(  
-2=16 
+3=13 
)=13 
+7=12
)=16 
+8=12 
+2=10 
)=12
17+
(
(
9+(  )=15 
8+(
)=17 
(  )+6=9 
9+(  )=16 
(  )+6=18
8+(  )=16 
6-(  )=2 
11+(  )=13 
10-(
)=0 
(  )=19 
(  )-6=4 
(  )+6=19 
(
)+1=10 
(  )-2=8 
  )+12=13 
1+(  )=3
(  )+3=7 
(  )+8=18 
  )+13=16 
(
)+9=14 
(  )+5=12 
(  )-4=10 
7-(  )=6
(  )+4=19 
8-(  
(  
(  )
3+(
(  )
7+(  
(  )
7+(  
)=0 
)=11
+9=14 
)=6 
-8=11 
)=17 
+5=13
)=10 
(  )
8+(  
(  )
16+(  
(
)
1+(  
9-(  
(  )
+8=15 
)=18
+6=11 
)=17 
-5=13 
)=16 
)=4
+6=14 
11+
(
(
13-