Number (add/sub)
Hong Kong
Stage 2
Properties of addition and subtraction
Interactive practice questions
Use the commutative property of addition to fill in the missing number.
$1+9=9$1+9=9$+$+$\editable{}$
Easy
< 1min
Use the commutative property of addition to fill in the missing number.
Easy
< 1min
Use the commutative property of addition to fill in the missing number.
Easy
< 1min
Use the commutative property of addition to fill in the missing number.
Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account