You can show the value of a number by writing the expanded notation form of the number.
A number is in its standard form as 36. This represents 3 tens and 6 ones. It is shown visually below.
Its expanded notation is written as:
Observe:
 3 groups of 10 is 30. That is 10 + 10 + 10 = 30 or 10 x 3 = 30
 6 groups of 1 is 6. That is 1 + 1 + 1 + 1 + 1 +1 =6 or 6 x 1 = 6
 We use the brackets to separate the groups before we add. 30 + 6 = 36.
Thus:
Exercise:
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Question 1 of 12
1. Question
7 point(s)
Tens = Tens
Ones= Ones
Expanded notation:
= ( ×10) + ( ×1)
= + =
Correct 7 / 7 PointsIncorrect / 7 Points 

Question 2 of 12
2. Question
8 point(s)
Tens = Tens
Ones= Ones
Expanded notation:
= ( ×10) + ( × )
= + =
Correct 8 / 8 PointsIncorrect / 8 Points 

Question 3 of 12
3. Question
8 point(s)
Tens = Tens
Ones= Ones
Expanded notation:
= ( × ) + ( ×1)
= + =
Correct 8 / 8 PointsIncorrect / 8 Points 

Question 4 of 12
4. Question
4 point(s)Write the number 81 in expanded notation.

81 = ( ×10) + ( ×1)
= + = 81
CorrectIncorrect 

Question 5 of 12
5. Question
4 point(s)Write the number 97 in expanded notation.

97 = ( ×10) + ( ×1)
= + = 97
Correct 4 / 4 PointsIncorrect / 4 Points 

Question 6 of 12
6. Question
1 point(s)Which of the following numbers has 8 ones and 3 tens?
CorrectIncorrect 
Question 7 of 12
7. Question
1 point(s)6 tens is:
CorrectIncorrect 
Question 8 of 12
8. Question
1 point(s)Which notation represents 23 ones?
CorrectIncorrect 
Question 9 of 12
9. Question
1 point(s)You have 8 tens and 15 ones. What number is this?
CorrectIncorrect 
Question 10 of 12
10. Question
1 point(s)Select the correct form of expanded notation for the number 89.
CorrectIncorrect 
Question 11 of 12
11. Question
4 point(s)Complete the expanded notation below.

(2× ) + ( ×1) = 28
( ×10) + (4× ) = 74
Correct 4 / 4 PointsIncorrect / 4 Points 

Question 12 of 12
12. Question
4 point(s)Match the following:
Sort elements
 20
 21
 12
 11

(2 x 10) + (0 x 1) =

(2 x 10) + ( 1 x 1) =

(1 x 10) + (2 x 1) =

(1 x 10) + (1 x 1) =
Correct 4 / 4 PointsIncorrect / 4 Points