sally's pencil is 15 hundredths of a meter long(0.15).Edward's pencil is 2 tenths a meter long(0.2).whose pencil is longer?

0.2 = 0.20 = twenty hundredths

Which is longer?

but why is 2.0 bigger than 0.15?

Which is more?

15 cents (0.15) or 20 cents (0.20)?

Edwards because 0.2= 0.20 or 0.200 or 0.2000. It equals the same thing no matter how many zeros there are.

To determine whose pencil is longer, we compare the lengths of Sally's pencil and Edward's pencil. Sally's pencil is 15 hundredths of a meter long, which is equivalent to 0.15. Edward's pencil is 2 tenths of a meter long, which is equivalent to 0.2.

To compare these decimals, we can either convert them to fractions or compare them directly as decimals. Let's compare them directly as decimals.

Comparing 0.15 and 0.2, we can see that 0.2 is greater than 0.15. Therefore, Edward's pencil is longer than Sally's pencil.