问题
填空题
482至少加上______才能被13整除,至少减去______才能被9整除.
答案
因为482÷13≈37.08,
13×38-482,
=494-482,
=12;
482÷9≈53.6,
482-53×9,
=482-477,
=5;
故答案为:12,5.
482至少加上______才能被13整除,至少减去______才能被9整除.
因为482÷13≈37.08,
13×38-482,
=494-482,
=12;
482÷9≈53.6,
482-53×9,
=482-477,
=5;
故答案为:12,5.