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@ @TU@ @†a‡Èÿa@ @
1 :( ) ()
2 ()
.1 ( )
()
2
:( )
3∗ + 6∗ = 1 + 1 = 1 ≠ 9∗
36 2
6∗ − 4∗ = 1 − 1 = − 1 ≠ 2∗
6 4 12
2∗ × 6∗ = 1 × 1 = 1 = 12∗
2 6 12
10∗ ÷ 2∗ = 1 ÷ 1 = 1 = 5∗
10 2 5
. () ()
1 :( )
. 1+2+3+ +8
1
.1+ 2 + 3 + + 7
.(1 + 2 + 3 + + 8) − (1 + 2 + 3 + + 7) = 8
:( ) ( )
)
. 0.192 .3+2 = 5
.144 < 164 < 169 :( ) (
.12 < 164 < 13 . 144 < 164 < 169
