40 x 15 +165*15-16?
回答 (15)
=200×15+4×15-1
=3000+60-1
=3059
(這種題目,是希望學生把數字化成整數,方便計算)
40 x 15 +165*15-16
=600+2475-16
=3059
40x15 +165x15-16
=600+2475-16
=3075-16
=3059
40*15+165*15-16
=600+2475-16
=3075-16
=3059
40(15)+164(15)-1
=15(204)-1
=15(200)+15(4)-1
=3000+60-1
=3059
40 x 15 +165*15-16 這题答案是3059
40×15+165×15-16
=600+2475-16
=3075-16
=3059
(40+165)*15=205*15=3075
3075-16=3059
40 x15 =600 + 11-16= 595
165*15 =11
600+11-16= 595
收錄日期: 2021-04-24 07:43:57
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20190328095106AAkxzWE
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