
112
: 5 ___ ____ ______________ : ______________
1
:(214)
1. ( )A B0.7 C
ABC
2. ( ) 1
10 18
28 46
3. ( )
49 98
294 343
4. ( )
40 35
30 20
5. ( ) 1
110
100 100
6. ( )
60
7. ( ) 1000 800
0.8 1.25
0.08 1.025
:(312)
50 5.45
_(
)
12
:(234)
()
1. 3060 =( )
=( )
2. 4.01 =( ) ( )
=( )
3. 50 =( )
4. =( )%
5. =( )%
6. 9 =( ) ()
7. 5.375 =( ) ( )
8. =( ) ( )
()
9. 40 10. 1.6
11. 4 60 4600 12. 80% 0.8
()
12 12 16 12 12 16 80