20以内的加减混合填空练习
一、在()里填上合适的数。
( )+5=12 11+( )=19 20-( )=15 10+( )=20 16-( )=0
( )+7=17 ( )-2=18 9+( )=17 19-( )=7 13+( )=16
( )-4=10 ( )+2=11 ( )-5=9 ( )+7=15 6+( )=129+( )=15 3+( )=11 ( )+8=14 17-( )=7 ( )-5=1013-( )=10 ( )+6=11 10+( )=16 7+( )=15 17-( )=17( )+12=12 13+( )=16 18-( )=9 5+( )=14 11-( )=517-( )=10 14+( )=18 ( )+8=12 ( )-12=3 ( )-8=8( )+5=18 2+( )=10 4+( )=8 5+( )=10 9+( )=183+( )=17 ( )+6=10 ( )+3=9 ( )+1=20 ( )+7=10( )+9=20 13+ ( )=16 14-( )=10 12+( )=18 15-( )=11( )+5=13 19-( )=5 ( )+2=16 18-( )=4 ( )+2=144+( )=20 19-( )=14 ( )-5=13 15+( )=17 ( )-15=519-( )=4 ( )-15=2 9+( )=18 15-( )=10 ( )-6=13
( )+9=19 20-( )=4 19-( )=3 ( )+11=15 ( )-6=12
18-( )=11 17-( )=10 ( )+6=15 ( )-7=11 13+( )=14
17-( )=10 ( )-8=11 10+( )=17 ( )+5=12 18-( )=9
5+( )=14 11-( )=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 11-( )=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=11
( )-9=9 ( )-8=5 14-( )=6 6+( )=9 2+( )=11
7+( )=15 8+( )=13 ( )+7=12 ( )+5=11 ( )+10=10
15-( )=15 15-( )=5 15-( )=10 15-( )=0 8+( )=16
( )+7=12 ( )+5=14 16-( )=10 7+( )=14 0+( )=12
5+( )=11 ( )+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
二、在○里填“>”、“<”或“=”。
6+4○11 6+4+2○6+6 7+817○8+8 7+3○20-3-7 4+3+56+7○17-7+4 12○15-3 6+75+8○8+5 8+5○3+9 3+24+6○20-9 17-3○7+7 16-513○7+7 20○10+9 6+75+8○6+9 13-3+5○9+5
三、括号里最大能填几。
10+5>( ) 6+3>4+( ) 7+9>( )+79+4>( )+9 5+9>( )+10 8+10>( )-08+5>( ) 6+( )<17-5 ( )+0<8+4○8+2+6
○14-2
○8+6
○20-4
○6+6
○9+2
( )+7<8+3
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