问题
解答题
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答案
(1)27+137=164,(2)2910-310=2600,(3)35+0.4=35.4,(4)314+156=470;
(5)400-259=141,(6)720-0.35=719.65,(7)515+4=519,(8)1+12+13=26;
(9)0.5+34-12=22.5,(10)101011-3+1111=102119,(11)434-2.5-14=417.5.
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(1)27+137=164,(2)2910-310=2600,(3)35+0.4=35.4,(4)314+156=470;
(5)400-259=141,(6)720-0.35=719.65,(7)515+4=519,(8)1+12+13=26;
(9)0.5+34-12=22.5,(10)101011-3+1111=102119,(11)434-2.5-14=417.5.