Year 2
Maths
Number and Algebra
AC9M2N05
Subtraction Strategies
Students use various strategies including counting back and split method to subtract two-digit numbers.
What You Need to Know
Students use various strategies including counting back and split method to subtract two-digit numbers.
Key Concept Diagram
Counting back on a number line
Split strategy for subtraction
Think addition to subtract
Checking with the inverse operation
Key Vocabulary
subtract
to take one number away from another
difference
the result of subtracting one number from another
minuend
the number being subtracted from
strategy
a planned method for solving a problem
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
What is 75 − 32?
Question 2
What is 60 − 24?
Question 3
What is 83 − 47?
Key Concepts Summary
- ●Counting back on a number line
- ●Split strategy for subtraction
- ●Think addition to subtract
- ●Checking with the inverse operation