问题
解答题
脱式计算
184-47+56
(560+460)÷20
756÷63+357÷21
510-16×3+57.
答案
(1)184-47+56
=137+56
=193;
(2)(560+460)÷20
=1020÷20
=51;
(3)756÷63+357÷21
=12+17
=29;
(4)510-16×3+57
=510-48+57
=462+57
=519.
脱式计算
184-47+56
(560+460)÷20
756÷63+357÷21
510-16×3+57.
(1)184-47+56
=137+56
=193;
(2)(560+460)÷20
=1020÷20
=51;
(3)756÷63+357÷21
=12+17
=29;
(4)510-16×3+57
=510-48+57
=462+57
=519.