帮忙找下小学二年级的加减混合运算题! 快点!

54+26+15=

90-58-24=

56+24-30=

67-34+39=

32+(55-46)=

76-(13+42)=

52-20-18=

27+15-23=

54+96+82=

98-56+41=

52-(98-69)=

52+(92-64)=

78-(24+35)=