Grade 4 - Progress in Mathematics

(Marvins-Underground-K-12) #1

Compare Decimals


13-4


Who rode the greater distance?

To find who rode the greater distance,
compare: 2.5 2.58

To compare decimals:
Align the digits 2.5
by their place value. 2.58

Start at the left. Compare 2 .5 2  2
the digits in the greatest place. 2 .58

Keep comparing digits until 2. 5 5  5
you find two digits that 2. 58
are notthe same.
2.5 0
So 2.5 2.58. 2.5 8

0  8

Naomi rode the greater distance, 2.58 km.

Study these examples.
$ 0.96 $ 0.92 42.7 4.7

$ 0. 96 9  9 4 2.7
$ 0. 92 6  2 4.7

So $ 0.96$ 0.92. 4  0
So 42.74.7.

?

??

2.5 2.58

Sheena 2.5 km
Naomi 2.58 km

Weekend Bike Rides
Name Distance

Think
0.5 0.50

Think
There are no tens
in 4.7.

1.2

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