How is 42 arrived at in the math question 28+7(5-3)=?
回答 (5)
✔ 最佳答案
28 + 7(5 - 3)
= 28 + 7(2)
= 28 + 14
= 42
28 + 7 x 2 = 28 + 14 = 42
OR
28 + 35 - 21 = 63 - 21 = 42
You do the one in the brackets first. Multiplying goes before adding if there are no brackets so. 28+7(5-3)=28+7*2=28+14=42
If you mean how to get 42 as an answer from the question 28+7(5-3)=
it is like this... 28+7(2)=
28+14= 42
the question can be re phrased as 28+14 because if we break the question down 5-3 must be done first because its in brackets
5-3=2
28=28
7=7 two terms together mean multply
2x7= 14 and
28+14=42
收錄日期: 2021-05-01 22:54:27
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