求一个数比另一个数多(少)百分之几的实际问题
1: ⑴(25-20)÷20×100%
= 5÷20×100%
= 25%
⑵(25-20)÷25×100%
= 5÷25×100%
= 20%
2: (90-60)÷60×100%
= 30÷60×100%
= 50%
3: (16-14﹚÷16×100%
= 2÷16×100%
= 12.5%
4: 66÷55×100%=120%
(66+55﹚÷ 55×100%
=121÷55×100%
= 220%
【www.ksjqmj.com--六年级补充习题答案】
求一个数比另一个数多(少)百分之几的实际问题
1: ⑴(25-20)÷20×100%
= 5÷20×100%
= 25%
⑵(25-20)÷25×100%
= 5÷25×100%
= 20%
2: (90-60)÷60×100%
= 30÷60×100%
= 50%
3: (16-14﹚÷16×100%
= 2÷16×100%
= 12.5%
4: 66÷55×100%=120%
(66+55﹚÷ 55×100%
=121÷55×100%
= 220%
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