35×括号15-276÷32括号的简便运算

35×括号15-276÷32括号的简便运算
2024-11-24 10:38:35
推荐回答(2个)
回答1:

35×(15-276÷32)
=35×(15-69/8)
=35x15-(35x69)/8
=(30+5)x15-[(30+5)(70-1)]/8
=450+75-(2100+350-30-5)/8
=525-2415/8
=4200/8-2415/8
=1785/8
=223又1/8

回答2:

35×(15-276÷32)
=35×(15-8.625)
=35×6.375
=223.125