对比练
$4+9=$ $8+7=$ $6+8=$ $8+5=$ $3+9=$
$13-9=$ $15-7=$ $14-6=$ $13-5=$ $12-3=$
$13-4=$ $15-8=$ $14-8=$ $13-8=$ $12-9=$
$4+9=$ $8+7=$ $6+8=$ $8+5=$ $3+9=$
$13-9=$ $15-7=$ $14-6=$ $13-5=$ $12-3=$
$13-4=$ $15-8=$ $14-8=$ $13-8=$ $12-9=$
答案
13 15 14 13 12 4 8 8 8 9 9 7 6 5 3
综合练
$16-9=$ $13-7=$ $12-6=$ $16-7=$ $7+4-2=$
$12-8=$ $15-6=$ $11-4=$ $14-7=$ $9+4-6=$
$11-5=$ $16-8=$ $12-5=$ $18-9=$ $11-7+9=$
$17-8=$ $15-9=$ $11-6=$ $13-6=$ $11-9+4=$
$11-2=$ $14-9=$ $12-7=$ $17-7=$ $6+8-9=$
$16-9=$ $13-7=$ $12-6=$ $16-7=$ $7+4-2=$
$12-8=$ $15-6=$ $11-4=$ $14-7=$ $9+4-6=$
$11-5=$ $16-8=$ $12-5=$ $18-9=$ $11-7+9=$
$17-8=$ $15-9=$ $11-6=$ $13-6=$ $11-9+4=$
$11-2=$ $14-9=$ $12-7=$ $17-7=$ $6+8-9=$
答案
7 6 6 9 9 4 9 7 7 7 6 8 7 9 13 9 6 5 7 6 9 5 5 10 5
1. 比大小。
$12-4◯ 11-2$ $13-7◯ 12-6$ $14-5◯ 16-9$
$11-3◯ 13-5$ $15-6◯ 13-4$ $17-9◯ 7+4$
$12-4◯ 11-2$ $13-7◯ 12-6$ $14-5◯ 16-9$
$11-3◯ 13-5$ $15-6◯ 13-4$ $17-9◯ 7+4$
答案
1. < = > = = <
2. 填一填。
$8+□ =17$ $9+□ =14$ $5+7=□ +6$
$□ -8=3$ $12-□ =9$ $14-6=□ -3$
$6+□ =15$ $□ +7=16$ $12-□ =3+2$
$8+□ =17$ $9+□ =14$ $5+7=□ +6$
$□ -8=3$ $12-□ =9$ $14-6=□ -3$
$6+□ =15$ $□ +7=16$ $12-□ =3+2$
答案
2. 9 5 6 11 3 11 9 9 7
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