问题
填空题
361-78+119-22=______,这样计数简便.
答案
361-78+119-22,
=361+119-(78+22),
=480-100,
=380.
故答案为:361+119-(78+22).
361-78+119-22=______,这样计数简便.
361-78+119-22,
=361+119-(78+22),
=480-100,
=380.
故答案为:361+119-(78+22).