一年级数学练习题和答案(2)

时间:2021-08-31

三、写出和是14的算式。

  ( )+( )=14 ( )+( )=14 ( )+( )=14

  ( )+( )=14 ( )+( )=14 ( )+( )=14

  ( )+( )=14 ( )+( )=14 ( )+( )=14

  ( )+( )=14 ( )+( )=14 ( )+( )=14

  ( )+( )=14 ( )+( )=14 ( )+( )=14

参考答案:

一、

  1:右,十;

  2:12;

  3:15,2;

  4:1,6,十,1,1;

  5:17,19;

  6:9,11;

  7:15,14,13,12;

  8:13,13;

  9:14,2;

  10:8,9,10,11,12;

  11:12,7,19,4;

  12:10-3 14-5 20-10 11+2 7+7 13+5;

  13:6,17,4,4;

  14:5+5>5 5-5<5 5<5+5 5="">5-5;

二、

  1:14;

  2:2+7;

  3:17;

  4:7+2+4=13;

  5:1个十和4个一;

  6:9;

  7:11-6=5;

三、

  (0)+(14)=14 (1)+(13)=14 (2)+(12)=14(3)+(11)=14

  (4)+(10)=14 (5)+(9)=14 (6)+(8)=14 (7)+(7)=14

  (8)+(6)=14 (9)+(5)=14 (10)+(4)=14 (11)+(3)=14

  (12)+(2)=14 (13)+(1)=14 (14)+(0)=14