"1504除以32等于几"...1504除以32等于几

　"150-4除以33等于几"...150-4除以33等于几

　"150除以3+42等于几"...150除以3+42等于几

　"150除以3=44等于几"...150除以3=44等于几

　"150除以34+5等于几"...150除以34+5等于几

　"150除以4-120等于几"...150除以4-120等于几

　"150-6除以40等于几"...150-6除以40等于几

　"150-72除以3等于几"...150-72除以3等于几

　"150-4除以47等于几"...150-4除以47等于几

　"150-4除以84等于几"...150-4除以84等于几