4.1 Ordering decimals

• Math
• Secondary Education

4.1 Ordering decimals

WALT: compare and order decimals

WILF: Ican order a pair of list of numbers. These numbers may be positive or negative decimals or measurements with different units.

Keywords: compare, decimal number, order, term-to-term rule

4.1 Ordering decimals

When you compare decimal numbers you can use these symbols.

 = means ‘is equal to’

≠ means ‘is not equal to’

> means ‘is bigger than’

< means ‘is smaller than’

Choose the correct sign, < or >, between each pair of numbers.

4.23               4.54

6.71                6.03

0.27                0.03

4.1 Ordering decimals

>

<

>

<

>

<

Choose the correct sign, < or >, between each pair of numbers.

27.9               27.85

8.55               8.508

5.055             5.50

4.1 Ordering decimals

>

<

>

<

>

<

Drag these decimal numbers in order of size, starting with the smallest.

4.1 Ordering decimals

23.592

23.6

23.605

23.66

Drag these decimal numbers in order of size, starting with the smallest.

4.1 Ordering decimals

0.009

0.08

0.1

0.107

Drag these decimal numbers in order of size, starting with the smallest.

4.1 Ordering decimals

6.007

6.71

6.725

6.78

Drag these decimal numbers in order of size, starting with the smallest.

4.1 Ordering decimals

11.002

11.02

11.032

11.1

When you order decimal measurements, you must make sure they are all in the same units.

You need to remember these conversion factors.

Choose the correct sign, = or ≠, between each pair of measurements.
6.7 l □ 670 ml

1. =
2. ≠

Choose the correct sign, = or ≠, between each pair of measurements.
4.05 t □ 4500 kg

1. =
2. ≠

Choose the correct sign, = or ≠, between each pair of measurements.
0.85 km □ 850 m

1. =
2. ≠

Choose the correct sign, = or ≠, between each pair of measurements.
0.985 m □ 985 cm

1. =
2. ≠

Choose the correct sign, = or ≠, between each pair of measurements.
14.5 cm □ 145 mm

1. =
2. ≠

Choose the correct sign, = or ≠, between each pair of measurements.
2300 g □ 0.23 kg

1. =
2. ≠

Drag these measurements in order of size, starting with the smallest.

4.1 Ordering decimals

780 g

1950 g

2.18 kg

2.3 kg

Drag these measurements in order of size, starting with the smallest.

4.1 Ordering decimals

0.8 cm

9 mm

12 mm

5.4 cm

Drag these measurements in order of size, starting with the smallest.

4.1 Ordering decimals

0.5 m

53 cm

650 cm

12 m

Drag these measurements in order of size, starting with the smallest.

4.1 Ordering decimals

50 kg

0.08 t

0.15 t

920 kg

Place the following negative numbers in order, starting with the smallest:
-9,-12,-10,-2, -3,-5, -20

The information below shows some recorded temperatures:
-9°C, -7°C, -8°C, -8.5°C, 8°C, -5°C, 5°C, 0°C

Order the temperatures, starting with the coldest.