Kungfu math p3 slide3 (subtraction)
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Transcript of Kungfu math p3 slide3 (subtraction)
• subtraction of numbers up to 4 digits
• use of the terms ‘difference’
What will we learn today?
Whole Numbers
Subtraction
Before we begin, let’s recall what is place values.
In the number 1245,
tens ones
In the number 1245,
thousands
hundreds
So, in a 4-digit number,
There are
Thousands place
Hundreds place
Tens place
Ones place
Find the difference of 1369 and 5240.
a) 3871
b) 3889
c) 6509
d) 6609
Did you notice the important information?
Find the difference of 1369 and 5240.
a) 3871
b) 3889
c) 6509
d) 6609
The word ‘difference’ refers to subtraction of the numbers.
Find the difference of 1369 and 5240.
a) 3871
b) 3889
c) 6509
d) 6609
By using workings, find the answer.
Counter-check your workingswith mine on the next page.
5240- 1369
1
3 1
5240- 1369
71
3 11+1
5240- 1369
871
1+14
5240- 1369
3871
4
Find the sum of 1369 and 5240.
a) 3871
b) 3889
c) 6509
d) 6609
Here’s another example.
In 3050, find the difference between the value of digit 3 and the value of digit 5.
Do you need any help?
In 3050, find the difference between the value of digit 3 and the value of digit 5.
Digit ‘3’ 3000Digit ‘5’ 50
Find the values of digit ‘3’ and ‘5’.
In 3050, find the difference between the value of digit 3 and the value of digit 5.
3000 – 50 = 2500
‘difference’ refers to subtraction of numbers.
Are you ready to try out the questions?