547+103用简便方法怎么做(
547+ 103,用简便方法怎么做??？
547+103 = 547+（100+3）547+3+100 =550+100 =650
=547-547+29 =0+29 =29
547+103 = 547+（100+3）547+3+100 =550+100 =650
=547-547+29 =0+29 =29
=650-103 =547 直接计算🐭-🌥，
=547+3582 =4129