问题
解答题
|
答案
(1)6
+4.25+31 5
+5.75,4 5
=(6
+31 5
)+(4.25+5.75),4 5
=10+10,
=20;
(2)24×101,
=24×(100+1),
=2400+24,
=2424.
|
(1)6
+4.25+31 5
+5.75,4 5
=(6
+31 5
)+(4.25+5.75),4 5
=10+10,
=20;
(2)24×101,
=24×(100+1),
=2400+24,
=2424.