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primary 5 | Maths | Decimals
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Athena
Athena

primary 5 chevron_right Maths chevron_right Decimals chevron_right Singapore

I don't know how to do this can some one help me pls

Date Posted: 1 month ago
Views: 10
katherine
Katherine
1 month ago
answer is 4 . move the decimal place over to the right twice.

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Norain
Norain's answer
3 answers (A Helpful Person)
1st
Answer = 4
Athena
Athena
1 month ago
Never explain
Eric Nicholas K
Eric Nicholas K
1 month ago
The tutor has explained it. Multiplying by 100 is a jump of two decimal places to the right.

Multiplying by 10 is a jump of one decimal place to the right.

Multiplying by 100 is a jump of two decimal places to the right.

Multiplying by 1000 is a jump of three decimal places to the right.

And so on.

Dividing is going the other way.

Dividing by 10 is a jump of one decimal place to the left.

Dividing by 100 is a jump of two decimal places to the left.

Dividing by 1000 is a jump of three decimal places to the left.

And so on.
Eric Nicholas K
Eric Nicholas K
1 month ago
In short, the number of zeroes in 10, 100, 1000 or 10000... determines the number of places the decimal point moves. Multiplying means the decimal point moves towards the right. Dividing means the decimal point moves towards the left.

Here, 0.04 is to be multiplied by 100. Observe that 100 contains two zeroes, so multiplying by 100 means the decimal moves two spaces to the right.

0.04 becomes 00.4, then 004. which equals 4.
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Alysha
Alysha's answer
24 answers (A Helpful Person)
This should be it.