Chapter 4.1 : Ordering Decimals

Presentation

•

Mathematics

•

7th Grade

•

Medium

Kanaga Kannathasan

Used 2+ times

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6 Slides • 13 Questions

Chapter 4.1 : Ordering decimals

Objectives

Write measurements in order (ascending/descending)

Compare decimals

Compare numbers with different unit

SYMBOLS FOR COMPARING NUMBERS

In Mathematics we use FOUR symbols to compare numbers

Multiple Choice

Complete the statement with the correct symbol:

4.23 _ 4.54

Multiple Choice

Complete the statement with the correct symbol:

5.055 _ 5.505

Multiple Choice

Complete the statement with the correct symbol:

0.27 _ 0.03

Multiple Choice

Complete the statement with the correct symbol:

2cm _ 20mm

To order decimals...

Compare the whole number part first.
When the whole number parts are the same, compare the tenths, then the hundredths and so on.

When you order decimal measurements, make sure that they are all in the same units. Remember the conversion factors.

Multiple Choice

Complete the statement:

6.7L _ 670mL

$=$

$\ne$

Multiple Choice

Complete the statement:

0.85km _ 850m

$=$

$\ne$

Multiple Choice

Complete the statement:

7800m _ 0.8km

$<$

$>$

Two Ways to Arrange Numbers

1. Ascending Order (smallest to biggest)

2. Descending Order (biggest to smallest)

Multiple Choice

Which of these is arranged in ascending order?

1.25 1.52 1.02 1.50

1.52 1.02 1.50 1.25

1.02 1.50 1.25 1.52

1.02 1.25 1.50 1.52

Multiple Choice

Order these numbers from greatest to least

0.25, 0.89, 0.56, 0.99

0.99, 0.56, 0.89, 0.25

0.25, 0.56, 0.89, 0.99

0.99, 0.89, 0.56, 0.25

0.89, 0.56, 0.25, 0.99

Ordering different measurements

When the measurements are not the same, use conversion to have the same measurements before ordering the numbers.

Multiple Choice

Write these measures from least to greatest.

2.3 kg, 780 g, 1950 g

780 g, 1950 g, 2.3 kg

2.3 kg, 780 g, 1950 g

2.3 kg, 1950 g, 780 g

2.3 kg, 780 g, 1950 g

Multiple Choice

Write these measures from least to greatest.

0.55L, 95mL, 0.9L, 450mL

0.9L, 0.55L, 450mL, 95mL

0.55L, 0.9L, 95mL, 450mL

95mL, 450mL, 0.55L, 0.9L

95mL, 0.9L, 450mL, 0.55L

Multiple Choice

Write in descending order.

0.08t, 920kg, 0.15t, 50kg

920kg, 50kg, 0.15t, 0.08t

920kg, 0.15t, 0.08t, 50kg

0.15t, 0.08t, 920kg, 50kg

50kg, 0.08t, 0.15t, 920kg

Open Ended

One take back from the lesson

Type response here

Chapter 4.1 : Ordering decimals

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