Ordering whole numbers

Self-assessment

Do the learners understand the work? Let them colour the faces that show what they can do.

COUNTING WITH WHOLE NUMBERS Requirements

I can count on and back in 2s.

I can count on and back in 3s.

I can count on and back in 5s.

I can count on and back in 10s.

I can count on and back in 25s.

I can count on and back in 50s.

I can count on and back in 100s.

I can do all the above up to 10 000. Can the learners do it?

Ordering whole numbers

In Grade 4, learners learnt how to arrange or place numbers in a specific order. Do they still remember how it works? Briefly revise ordering whole numbers.

Ordering means to arrange or organise numbers.

order = arrange

We can order or arrange numbers in different ways:

from GREAT to small

OR

from small to GREAT

Study the number set: {4 952; 4 592; 5 942; 2 924}

Arrange the numbers from great to small.

Step 1: Choose the greatest number and write it down first.

The greatest number in this set is 5 942.

Step 2: Now cross out the greatest number in the number set.

{4 952; 4 592; 5 942; 2 924}

You can no longer choose the number 5 942.

Step 3: From the remaining numbers, choose the greatest number and write it next to 5 942.

5 942; 4 952

Step 4: Now repeat steps 2 and 3 until you have crossed out all the numbers.

When you are done, the set of numbers must look like this:

{5 942; 4 952; 4 592; 2 924}

You have now arranged the number set from greatest to smallest.

Can you arrange the following number set from small to great?

{5 667; 5 676; 5 766; 6 756; 6 657}