Addition:
Number line (add to nearest 10)
Number line (add 10s first)
Number line (compensation)
Column method (expanded)
Column method (add the units first)
Column method (carrying)
Subtraction:
Number line (subtract to nearest 10)
Number line (subtract 10s first)
Number line (compensation)
Adding on
Column method (Expanded )
Column method (borrowing)
Multiplication:
Repeated addition
Arrays
Partitioning (knowing multiplication facts)
Partitioning (2 digit by 1 digit number)
Grid method
Division:
Sharing
Repeated subtraction
Grouping
Arrays
Remainders
Our Addition,
Subtraction,
Multiplication and
Division Methods
Addition:
Number line (add to nearest 10)
Number line (add 10s first)
Number line (compensation)
Column method (expanded)
Column method (add the units first)
Column method (carrying)
Subtraction:
Number line (subtract to nearest 10)
Number line (subtract 10s first)
Number line (compensation)
Adding on
Column method (Expanded )
Column method (borrowing)
Multiplication:
Repeated addition
Arrays
Partitioning (knowing multiplication facts)
Partitioning (2 digit by 1 digit number)
Grid method
Division:
Sharing
Repeated subtraction
Grouping
Arrays
Remainders
÷ Division ÷
Method: Remainders
57 ÷ 5 = 11 r2
÷ Division ÷
Method: Arrays
3
4
1
1
×
×
2
2
4
3
÷
÷
12 ÷ 3 = 4
=
=
3
4
1
1
=
=
2
2
4
3
÷ Division ÷
Method: Grouping
15 ÷ 3 = 5
÷ Division ÷
+ Addition +
Method: Repeated Subtraction
Method: Number Line
Add to the nearest 10
24 ÷ 4 = 6
0
4
8
12
16
20
8 + 7 = 15
24
+ Addition +
÷ Division ÷
Method: Number Line
Add the 10s first
Method: Sharing
48 + 36 =84
+
=
15 ÷ 3 = 5
+ Addition +
Method: Number Line
Compensation
73 + 49 = 122
+ Addition +
x Multiplication x
Method: Column
Expanded
Method: Grid Method
47 + 76 = 123
+
13 x 3 = 39
x Multiplication x
+ Addition +
Method: Partitioning
2 digit multiplied by 1 digit
Method: Column Method
Add the units first
13 x 3 = 39
47 + 76 = 123
+ Addition +
x Multiplication x
Method: Column. Carrying
Method: Partitioning
Knowing multiplication facts
47 + 76 = 123
14 x 5 = 70
10 × 5
0
4×5
50
7 x 3 = 21
70
x Multiplication x
Method: Arrays
3
4
1
1
×
×
2
2
4
3
÷
÷
3 x 4 = 12
=
=
3
4
1
1
=
=
2
2
4
3
x Multiplication x
Method: Repeated Addition
6 x 4 = 24
- Subtraction Method: Number Line
Subtract to the nearest 10
15 - 7 = 8
- Subtraction Method: Number Line
Subtract the 10s first
74 - 27 = 47
- Subtraction -
- Subtraction -
Method: Column.
Borrowing.
Method: Number Line
Compensation
325 - 58 = 267
63 - 8 = 55
- Subtraction -
- Subtraction -
Method: Adding On
Method: Expanded Column
Method
231 - 189 = 57
325 - 58 = 267