Practice Problems — Set 19

K.OA.A.4 · Make 10 partners

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. Talk through today's focus: Make 10 partners 2. Try one oral example together before writing. 3. Use the diagram to explain your thinking.

_See printable PDF for diagram._

Written practice

1. 4 + ___ = 10 2. 6 + ___ = 10 3. Draw a ten-frame showing 8. How many more to 10? 4. Write all partners of 10 you know: ___ + ___ = 10 5. Fill in: 10 = 7 + ___ 6. Quick check: 7 + ___ = 10 7. Explain your thinking for set 19 in one sentence. 8. Create your own problem for K.OA.A.4.

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More written practice

1. Apply Make 10 partners (item 9, set 19): show your work. ___ 2. Apply Make 10 partners (item 10, set 19): show your work. ___ 3. Apply Make 10 partners (item 11, set 19): show your work. ___ 4. Apply Make 10 partners (item 12, set 19): show your work. ___ 5. Apply Make 10 partners (item 13, set 19): show your work. ___ 6. Apply Make 10 partners (item 14, set 19): show your work. ___

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Patterns and rules

1. Teen numbers are 10 and some ones. 2. Partners that make 10 help with quick facts. 3. The whole equals the sum of the parts.

_See printable PDF for diagram._

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Stretch

1. Create your own K.OA.A.4 question for a parent to solve. 2. Explain your method in two sentences.

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Parent tip: Fill the ten-frame: “How many more to 10?”