带有小括号的加减混合运算答案.ppt
500+100+80 612-196-96 46+700-410 876-121+100 358-50+170 960-220-110,=600+80,=680,=746-410,=336,=308+170,=478,=416-96,=320,=755+100,=855,=740-110,=630,400,450,1000,400,525,605,350,190,510,430,540,=800-,243,=557,=357+,249,=606,436+275=,711(盆),711+164=,875(盆),1、小亮1分钟能打多少字?2、小红和小莉一分钟一共打多少字?,102-20,=82,+28,+28,=110(个),102-20,=82,+102,+102,=184(个),314=,7(条),3(人),7+1=8(条),答:至少租8条船。,203=,6(时),2(元),