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Primary 4 | Maths
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Wendi
Wendi

Primary 4 chevron_right Maths chevron_right Singapore

I kept getting 668, which is wrong. Where is wrong. Please help.

589 x 2= 1,178
1494 - 1178 = 316
316 ÷ 4 = 79
589 + 79 = 668..

Date Posted: 3 years ago
Views: 336
Elson
Elson
3 years ago
May i ask whats the answer
Wendi
Wendi
3 years ago
747
AC Lim
AC Lim
3 years ago
668 is correct answer.
Elson
Elson
3 years ago
Then i think there might be a typo on the answer key
Elson
Elson
3 years ago
Exactly
Wendi
Wendi
3 years ago
So my workings are correct, right?
Elson
Elson
3 years ago
Yes i have used several methods to try that our
Wendi
Wendi
3 years ago
Thanks very much
J
J
3 years ago
You are correct. The answer is given as 747 because whoever that worked out that answer has made the following mistake :


1494 - 589 - 589 = 316

Instead of dividing by 4, the person divided by 2.

316 ÷ 2 = 158
158 + 589 = 747
J
J
3 years ago
Alternative way to do this question :


1494 + 589 + 589 = 2672

This is the same as 4 carpets.

2672 ÷ 4 = 668
AC Lim
AC Lim
3 years ago
@J perfect explanation.
J
J
3 years ago
Thanks!

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AC Lim
Ac Lim's answer
12510 answers (A Helpful Person)
1st
For your reference. Your answer is perfectly correct.
Wendi
Wendi
3 years ago
Thanks
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Wan Zafran
Wan Zafran's answer
8 answers (Tutor Details)
Here’s one way of doing it