Wyoming Math K.OA.4
The Standard
For any number from 1 to 9, find the number that makes 10 when added to the given number.
2023 Wyoming Mathematics Content and Performance Standards · Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students find how many more objects are needed to make a group of 10. They use counters, a ten-frame, or a drawing to show the missing amount and name it.
What Mastery Looks Like
- Given any number from 1 to 9, a student names the number that makes 10 and shows how they know. For 8, they add 2 counters and write 8 + 2 = 10.
Common Misconceptions
- Some students answer 10 when asked how many more are needed. Others count all the counters on a ten-frame instead of the empty spaces.
How to Assess It
- Put 6 counters on a ten-frame. Ask, 'How many more make 10? Draw them in the empty boxes and fill in 6 + __ = 10.'
Lesson moves
Ways to Teach It
Give each child a ten-frame and counters; have them place 7, fill the empty boxes, and name how many they added.
Show a ten-frame with 4 counters and ask, 'How can you tell how many more make 10 without counting every box?'
Partners draw number cards from 1 to 9, write the missing number to make 10, then check with counters.
Set out 10 paper plates for a pretend picnic and 8 cups; ask children how many more cups are needed.
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Printable K.OA.4 Worksheet
A ready-to-print activity worksheet aligned to K.OA.4, with an answer key for the teacher on its own page. No account needed.
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