max.book118.com
5
19 + (3.9? 5.22)
9 1993× 0.4 1.6
= ÷ ( × 2 + )
5 1995 1995 NN
19 ? (6.54? 5.22)
9
5
19 ? 1.32
9 1559.4+ 1.6 CC
= ÷ ( )
19 5 ? 1.32 1995 ..
9 II
1995
= 1× = 1.25
1596
AA
x + 30 = 6(x ? 30) SS
x = 42 II
EE
BB
AA
UU
HH
..
WW
WW
WW
max.book118.com
NN
(1× 30 ? 2×10) ÷ (30 ? 10) = 1 CC
1 2 II..
2×10 ? ×10 = 15
2
15+ 1 × 30 AA
2 = 1
30 SS
15
= 5
1× 3
II
37 = 3 + 5 + 29
= 2 + 5 + 7 + 23 = 3 + 11+ 23 EE
= 2 + 3 + 13 + 19 = 5 + 13 + 19
= 7 +11+ 19 = 2 + 5 +11+ 19
BB
= 7 +13 +17 = 2 + 5 +13 +17
= 2 + 7 + 11+ 17AA
3× 5× 29 = 435
UU
HH
..
WW
WW
WW
max.book118.com
NN
CC
19.95 3 6. 65
÷ =
..
II
AA
SS
II
EE
BB
52 × 15π + 22 × 17π 375π + 68π
= = 17.72
2 25π
5 π AA
17.72 20
UU
HH
..
2 2 2
5 × 15π + 2 xπ = 5 xπ
WW
17.86 17
WW
WW
max.book118.com
NN
CC
II..
AA
第5届“华杯赛”复赛试题答案.pdf
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