计算下面各题,能简便运算的要简笔运算.467+298      16.8-5.1-4.9     (9/13)÷8-(1/8)×(1/13)14.2×99+14.2  ((1/4)+(5/6)-(1/3))×12  (3/5)×(2/5)÷(3/5)×(2/5)

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计算下面各题,能简便运算的要简笔运算.467+298      16.8-5.1-4.9     (9/13)÷8-(1/8)×(1/13)14.2×99+14.2  ((1/4)+(5/6)-(1/3))×12  (3/5)×(2/5)÷(3/5)×(2/5)

计算下面各题,能简便运算的要简笔运算.467+298      16.8-5.1-4.9     (9/13)÷8-(1/8)×(1/13)14.2×99+14.2  ((1/4)+(5/6)-(1/3))×12  (3/5)×(2/5)÷(3/5)×(2/5)
计算下面各题,能简便运算的要简笔运算.
467+298      16.8-5.1-4.9     (9/13)÷8-(1/8)×(1/13)
14.2×99+14.2  ((1/4)+(5/6)-(1/3))×12  (3/5)×(2/5)÷(3/5)×(2/5)

计算下面各题,能简便运算的要简笔运算.467+298      16.8-5.1-4.9     (9/13)÷8-(1/8)×(1/13)14.2×99+14.2  ((1/4)+(5/6)-(1/3))×12  (3/5)×(2/5)÷(3/5)×(2/5)
①467+298=467+300-2=767-2=765
②16.8-5.1-4.9=16.8-(5.1+4.9)=16.8-10=6.8
③(9/13)÷8-(1/8)×(1/13)=9/13*1/8-1/8*1/13=1/8*(9/13-1/13)=1/8*8/13=1/13
④14.2*99+14.2=14.2*99+14.2*1=14.2*(99+1)=14.2*100=1420
⑤((1/4)+(5/6)-(1/3))×12  =1/4*12+5/6*12-1/3*12=3+10-4=9
⑥(3/5)×(2/5)÷(3/5)×(2/5)=(3/5*2/5)/(3/5*2/5)=1
希望对你有所帮助..