看起來很難,其實很容易
1100906+60*5555+950512-50541200=
回答 (10)
1100906+60*5555+950512-50541200
=1100906+333300+950512-50541200
=1434206+950512-50541200
=2384718-50541200
=-48156482
2007-01-09 20:05:57 補充:
其實乘號可以用x或X表示但係呢條題目看起來很容易,其實超級容易 !!!!!!!
1100906+60*5555+950512-50541200= -48156482
心算都好易:60*5555=333300
333300+950512=1283812
1100906+1283812=2384718
2384718-50541200
=-(50541200-2384718)
用心算我會減齊頭數加計加數
-(50541200-3000000+615282)
=-(47541200+615282)=-48156482
加減數其實唔需要用到計算機或電腦,心算好易計到的,通常最後我會計一次數式的個位數以防過程中唔小心的錯;這算式係1字頭的7位數加兩個六位數減8位數,估計答案應該仍係8位數,睇睇答案是否接近就可肯定沒有錯了。
看似係複雜,又似乎由簡變繁,但現實生活中計這類數的場合通常不便用計算機,最好識心算!
1100906+60*5555+950512-50541200
=-48156482
(先乘除,後加減)
1100906+60*5555+950512-50541200=?
1100906+60*5555+950512-50541200= -48156482
參考: Me
-48,156,482
You can use 小算盤 or your own calculator to caculate the answer.
First type 60*5555(先乘除,後加減)
then +1100906+950512-50541200
At last,you will get the answer.
1100906+60*5555+950512-50541200= -48156482
負47884227
2007-01-18 16:37:08 補充:
1100906+60*5555+950512-50541200=-48156482負47884227不是
收錄日期: 2021-04-13 00:25:58
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