101乘以99乘以999加999 急...
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101乘以99乘以999加999 急...
101乘以99乘以999加999 急...
101乘以99乘以999加999 急...
101x99x999+999
=((100+1)*99+1)*999
=(100*99+99+1)*999
=10000*999
=9990000
为啥问这?
难道是9990000~~~
9990000
建议你用手指算一算!
9990000
999000 0
101*99*999+999???
9990000
101 × 99 × 999 + 999
= 101 × (99 + 1)× 999
= 101 × 100 × 999
= 10100 × 999
= (10000 + 100)× 999
= 10000 × 999 + 100 × 999
= 9990000 + 99900
= (10000000 - 10000) + (100000 -...
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101 × 99 × 999 + 999
= 101 × (99 + 1)× 999
= 101 × 100 × 999
= 10100 × 999
= (10000 + 100)× 999
= 10000 × 999 + 100 × 999
= 9990000 + 99900
= (10000000 - 10000) + (100000 - 100)
= 10000000 - 10000 + 100000 - 100
= 10000000 + 100000 - 10000 - 100
= 10100000 - 10100
= 10099900
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101乘以99乘以999加999 急...
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