4.8比_多20%,_比8少30%.

问题描述:

4.8比______多20%,______比8少30%.

①4.8÷(1+20%),
=4.8÷1.2,
=4;
②8×(1-30%),
=8×0.7,
=5.6;
故答案为:4,5.6.