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a,
涓綅鏁版槸
b ,
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10a+b
(
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am
bm
a
b
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0)
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m
a
m
b
a
b
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a
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5
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涔樻硶鍒嗛厤寰嬶紝椤虹敤
a(b+c)=ab+ac,
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飥?/p>
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17
8
24
17
16
16
(
8
1
2
17
24
17
2
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=
17
12
閫嗙敤
5a+5b=5(a+b),
6.25
脳
3.14
锛?/p>
5.25
脳
3.14=3.14(6.25
锛?/p>
5.25)=3.14