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一年级数学口算能力快速提升训练②
1直接写得数
13-8= 15+3= 11-6= 8-3= 10+10=
14+5= 13-9= 20-17= 2+17= 6+13=
10-2= 6+10= 13+7= 6+5= 14-11=
11-4= 16-2= 17-11= 7+12= 8+3=
1 - 1 + 16= 1 + 7 - 5= 6 + 10 - 7= 7 + 10 - 5= 9 + 9 - 6=
18 + 1 - 7= 7 + 8 - 5= 11 - 9 + 1= 9 + 7 - 2= 10 - 10 + 5=
1 + 9 +3= 13 - 4 + 10= 5 + 4 - 8= 19 - 19 + 18= 8 + 7 - 15=
8 - 2 + 1= 9 + 5 - 12= 9 + 1 - 2= 10 – 8 + 3= 15 – 6 - 5=
2比大小
12-2 ◯ 9 13-4 ◯ 8 16-5 ◯ 10 19-16 ◯ 5
9+5 ◯ 12 2+15 ◯ 19 2+10 ◯ 11 8+8 ◯ 18
10+8 ◯ 20 15-2 ◯ 14 10+9 ◯ 20 4+5 ◯ 19
15-9 ◯ 7 3+11 ◯ 15 20-14 ◯ 5 2+18 ◯ 16
12+7 ◯ 18 13+5 ◯ 16 9+6 ◯ 14 19-6 ◯ 14
3填空
( )+3=17 15+( )=20 ( )+4=15 2+( )=12
( )+8=14 ( )+14=16 7+( )=16 ( )+8=11
( )+5=11 ( )+8=19 ( )+9=18 ( )+4=17
17 -( )=10 11 -( )=6 5 +( )=19 ( )+5=18
( )+7=15 ( )+3=14 ( )+7=18 6+( )=18
19 -( )=9 11-( )=7 15 -( )=8 ( )- 5=12
18 -( )=6 15-( )=4 13 -( )=7 ( )- 9=1
7+( )=19 11+( )=20 5 +( )=14 2+( )=18
15 -( )=9 14-( )=7 16 -( )=8 ( )- 6=12
9+( )=19 13+( )=19 5 +( )=18 9+( )=17