Question

简便计算： 7.8除大括号32*（1-八分之五）+3.6反大号 八分之三*四分之五+125%+0.628*1.25

2222*二分之三+6666*三分之四+13332*四分之五

Answer 1

7.8÷[32×（1-5/8）+3.6]
=7.8÷[32×3/8+3.6]
=7.8÷[12+3.6]
=7.8÷15.6
=0.5
3/8×5/4+125%+0.628×1.25
=0.375×1.25+1.25+0.628×1.25
=（0.375+1+0.628）×1.25
=2.003×1.25
=2×1.25+0.003×1.25
=2.5+0.00375
=2.50375
2222×3/2+6666×4/3+13332×5/4
=2222×3/2+2222×4+2222×15/2
=2222×（3/2+4+15/2）
=2222×13
=28886
（“/”为分数线，望采纳，谢谢）

Answer 2

7.8除大括号32*（1-八分之五）+3.6反大号
=7.8÷（12+3.6）
=0.5
第二题是不是0.625啊
八分之三*四分之五+125%+0.625*1.25
=0.375*1.25+1.25+0.625*1.25
=（0.375+1+0.625）*1.25
=2*1.25
=2.5

2222*二分之三+6666*三分之四+13332*四分之五
=1111*3+2222*4+3333*5
=1111*(3+8+15)
=1111*(20+6)
=22220+6666
=28886

√希望你能看懂，你能明白， 望采纳，赞同

Answer 3

7.8÷{32*（1-5/8）+3.6}
=7.8÷(12+3.6)
=7.8÷15.6
=0.5

3/8*5/4+125%+0.628*1.25
=0.375*1.25+1.25+0.628*1.25
=(0.375+1+0.628)*1.25
=2.003*1.25
=2.5+0.00375
=2.50375

2222*二分之三+6666*三分之四+13332*四分之五
=1111*(3+8+15)
=1111*26
=28886