√2は1.41だとします
(√2=1.41421356……)
4＋9✕1.41
＝4＋12.69
＝16.69
(4＋9)✕1.41
＝13✕1.41
＝18.33
と答えが違います
いわゆる4＋9aと同じで4と9は足せません
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√2は1.41だとします
(√2=1.41421356……)
4＋9✕1.41
＝4＋12.69
＝16.69
(4＋9)✕1.41
＝13✕1.41
＝18.33
と答えが違います
いわゆる4＋9aと同じで4と9は足せません
Users viewing this question
are also looking at these questions 😉
