Mathematics can exercise children's logical thinking well. The following are the application problems I have compiled in primary schools in the past 20 years, hoping to help you.
First, the calculation problem
( )+5= 12
1 1+( )= 19
20-( )= 15
10+( )=20
16-( )=0
( )+7= 17
( )-2= 18
9+( )= 17
19-( )=7
13+( )= 16
( )-4= 10
( )+2= 1 1
( )-5=9
( )+7= 15
6+( )= 12
9+( )= 15
3+( )= 1 1
( )+8= 14
17-( )=7
( )-5= 10
13-( )= 10
( )+6= 1 1
10+( )= 16
7+( )= 15
17-( )= 17
( )+ 12= 12
13+( )= 16
18-( )=9
5+( )= 14
1 1-( )=5
17-( )= 10
14+( )= 18
( )+8= 12
( )- 12=3
( )-8=8
( )+5= 18
2+( )= 10
4+( )=8
5+( )= 10
9+( )= 18
3+( )= 17
( )+6= 10
( )+3=9
( )+ 1=20
( )+7= 10
( )+9=20
13+ ( )= 16
14-( )= 10
12+( )= 18
15-( )= 1 1
( )+5= 13
19-( )=5
( )+2= 16
18-( )=4
( )+2= 14
4+( )=20
19-( )= 14
( )-5= 13
15+( )= 17
( )- 15=5
19-( )=4
( )- 15=2
9+( )= 18
15-( )= 10
( )-6= 13
( )+9= 19
20-( )=4
19-( )=3
( )+ 1 1= 15
( )-6= 12
18-( )= 1 1
17-( )= 10
( )+6= 15
( )-7= 1 1
13+( )= 14
17-( )= 10
( )-8= 1 1
10+( )= 17
( )+5= 12
18-( )=9
5+( )= 14
1 1-( )=5
17-( )= 10
14+( )= 18
( )+8= 12
( )- 12=3
( )-8=8
( )+5= 18
12-( )=9
15-( )=7
12-( )=3
17-( )=9
( )-6=7
12-( )=5
13-( )=8
( )-7=7
14-( )=6
15-( )=9
1 1-( )=7
17-( )=8
( )-5=7
13-( )=7
13-( )=5
15-( )=8
12-( )=9
17-( )=7
12-( )=6
16-( )=9
( )-4=7
( )-6=5
14-( )=6
18-( )=9
6+( )= 14
( )+6= 14
14-( )=8
9+( )= 13
( )+8= 13
( )+( )= 12
( )+8= 15
( )-4= 1 1
( )-9=9
( )-8=5
14-( )=6
6+( )=9
2+( )= 1 1
7+( )= 15
8+( )= 13
( )+7= 12
( )+5= 1 1
( )+ 10= 10
15-( )= 15
15-( )=5
15-( )= 10
15-( )=0
8+( )= 16
( )+7= 12
( )+5= 14
16-( )= 10
7+( )= 14
0+( )= 12
5+( )= 1 1
( )+6= 14
8-( )=0
8-( )=8
15-( )=6
( )+ 13= 13
19-( )=9
6+( )= 14
0+( )=0
13-( )=5
8+( )= 15
10+( )= 18
15+( )=20
0-( )=0
6+( )= 14
Second, put ">" in (), "< or" = ".
6+4() 1 1
6+4+2()6+6
7+8()8+2+6
17()8+8
7+3()20-3-7
4+3+5() 14-2
6+7() 17-7+4
12() 15-3
6+7()8+6
5+8()8+5
8+5()3+9
3+2()20-4
4+6()20-9
17-3()7+7
16-5()6+6
13()7+7
20() 10+9
6+7()9+2
5+8()6+9
13-3+5()9+5
3. What is the maximum number of words in brackets?
10+5 >( )
6+3 >4+( )
7+9 >( )+7
9+4 >( )+9
5+9 >( )+ 10
8+ 10 >( )-0
8+5 >( )
6+()& lt； 17-5
()+0 & lt； 8+4
()+7 & lt； 8+3
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