(-17/4)+(-10/3)+(+13/3)+(11/3) (-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) 5+(-7)+17-10(-14)+4-19-122100-21×53+2255 (103-336÷21)×15 40×48-(1472+328)÷5 (488+344)÷(202-194)(154-76)×(38+49) 816÷(4526-251×18)
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/27 23:06:57
(-17/4)+(-10/3)+(+13/3)+(11/3) (-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) 5+(-7)+17-10(-14)+4-19-122100-21×53+2255 (103-336÷21)×15 40×48-(1472+328)÷5 (488+344)÷(202-194)(154-76)×(38+49) 816÷(4526-251×18)
(-17/4)+(-10/3)+(+13/3)+(11/3)
(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
5+(-7)+17-10
(-14)+4-19-12
2100-21×53+2255
(103-336÷21)×15
40×48-(1472+328)÷5
(488+344)÷(202-194)
(154-76)×(38+49)
816÷(4526-251×18)
(-17/4)+(-10/3)+(+13/3)+(11/3) (-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) 5+(-7)+17-10(-14)+4-19-122100-21×53+2255 (103-336÷21)×15 40×48-(1472+328)÷5 (488+344)÷(202-194)(154-76)×(38+49) 816÷(4526-251×18)
(-17/4)+(-10/3)+(+13/3)+(11/3) =-17/4+(-10/3+13/3+11/3)=-17/4+14/3=1/4
(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) =(-1.8+1.8)+(+0.2+0.1+1.4-1.7)=0+0=0
5+(-7)+17-10=(5-10)+(17-7)=-5+10=5
(-14)+4-19-12=(-14+4)-(19+12)=-10-31=-41
2100-21×53+2255 =2100-1113+2255=3242
(103-336÷21)×15 = (103-16)x15=87x15=1305
40×48-(1472+328)÷5 =1920-1800÷5=1920-360=1560
(488+344)÷(202-194)=832÷8=104
(154-76)×(38+49) =78x87=6786
816÷(4526-251×18)=816÷(4526-4518)=816÷8=102