Curriculum placement
Kindergarten. This describes the skill, not a learner estimate.
Subtracting within 10
Represent separating and solve differences within ten
Problem types
- Take some away
Builds on
- Adding within 10
- Ordering numbers through 10 · Useful idea
How much greater one numeral is than another is a subtraction: 7 is 3 more than 4 because 7 - 4 = 3.
Leads to
- Addition and subtraction facts within 5
- Join and separate: pictures, equations
- Comparing two groups by matching · See it applied
How many more one group has is found by taking the smaller count away from the larger: 7 is 3 more than 4 because 7 - 4 = 3.
- Subtracting within 20 · Extend the idea
Take-away facts within 10 extend to within 20 by subtracting through ten: take away enough to reach 10, then take away the rest.
- Picture graphs and bar graphs · See it applied
The difference between two bars is the subtraction of their counts.
Related skills
- Finding a missing number · Related idea
Subtraction and addition undo each other: 5 - 2 = 3 tells you that 2 + 3 = 5, so an unknown addend is found by subtracting.
- Number bonds to 10 · Shared foundations
Open the interactive map to explore lessons and skill connections.