用竖式计算。(建议用时10分钟)
$12×24=$
$80×47=$
$67×41=$
$29×63=$
$72×39=$
$27×55=$
$58×84=$
$36×25=$
$67×52=$
$46×237=$
$297×27=$
$468×64=$
$39×429=$
$330×23=$
$481×29=$
$409×35=$
$406×68=$
$507×45=$
$12×24=$
$80×47=$
$67×41=$
$29×63=$
$72×39=$
$27×55=$
$58×84=$
$36×25=$
$67×52=$
$46×237=$
$297×27=$
$468×64=$
$39×429=$
$330×23=$
$481×29=$
$409×35=$
$406×68=$
$507×45=$
答案
1. $12×24=288$
2. $80×47=3760$
3. $67×41=2747$
4. $29×63=1827$
5. $72×39=2808$
6. $27×55=1485$
7. $58×84=4872$
8. $36×25=900$
9. $67×52=3484$
10. $46×237=10902$
11. $297×27=8019$
12. $468×64=29952$
13. $39×429=16731$
14. $330×23=7590$
15. $481×29=13949$
16. $409×35=14315$
17. $406×68=27608$
18. $507×45=22815$
2. $80×47=3760$
3. $67×41=2747$
4. $29×63=1827$
5. $72×39=2808$
6. $27×55=1485$
7. $58×84=4872$
8. $36×25=900$
9. $67×52=3484$
10. $46×237=10902$
11. $297×27=8019$
12. $468×64=29952$
13. $39×429=16731$
14. $330×23=7590$
15. $481×29=13949$
16. $409×35=14315$
17. $406×68=27608$
18. $507×45=22815$
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