计算下面各题（共24题）
(1) 67.05-9.3= (2) 81.99-12.25= (3) 99.2+9.83=
(4) 45.92+35.72= (5) 8.7+7.1= (6) 6.6-2.3=
(7) 77.8+8.4= (8) 22.4-20.4= (9) 14.41+5.8=
(10) 72.31+6.8= (11) 47.6-8.08= (12) 38.8-14.38=
(13) 42.3+94.4= (14) 63.2+6.9= (15) 8.33-3.72=
(16) 5.8-3.4= (17) 22.07-4.73= (18) 91.44-7.1=
(19) 50.03-8.1= (20) 59.2-37.03= (21) 2.14+8.16=
(22) 4.6+2.39= (23) 74.34+4.2= (24) 7.7-2.97=
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【答案】：
(1)57.75,(2)69.74,(3)109.03,(4)81.64,(5)15.8,(6)4.3,(7)86.2,(8)2,(9)20.21,(10)79.11,(11)39.52,(12)24.42,(13)136.7,(14)70.1,(15)4.61,(16)2.4,(17)17.34,(18)84.34,(19)41.93,(20)22.17,(21)10.3,(22)6.99,(23)78.54,(24)4.73
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