Review — Difficulty 9/10

K.NBT.A.1 · Teen numbers as 10 and ones

Review skills for this standard. Write answers where shown.

Together with a parent

1. 13 = 10 + ___ 2. Draw 16 as one ten and ones. 3. Write the teen number: ten and 3 ones → ___

Written review

1. 15 = 10 + ___ 2. Draw 18 as one ten and ones. 3. Write the teen number: ten and 5 ones → ___ 4. Decompose 17: ___ + ___ 5. Which shows 17? (A) 10+6 (B) 10+7 (C) 7+10 — write the letter: ___ 6. Write numerals 11–12 in order. ___

_See printable PDF for diagram._

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Skills checklist

• [ ] Models any teen number 11–19
• [ ] Writes 10 + ones equation
• [ ] Explains in words
• [ ] Explains Teen numbers as 10 and ones without prompts

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