Review — Difficulty 4/10
2.NBT.B.9 · Explain why addition and subtraction strategies work, using place val…
Review skills for this standard. Write answers where shown.
Together with a parent
1. Discuss: Explain why addition and subtraction strategies work, using place value and the … 2. What was easy? What was tricky? 3. Use the diagram to model one example.
Written review
1. Write the value of the underlined digit in 219: ___ 2. 39 = ___ tens + ___ ones 3. Expanded form: 49 = ___ + ___ 4. Which is greater: 34 or 41? ___ 5. Write the numeral: 7 tens and 6 ones → ___ 6. Round 56 to the nearest ten: ___
_See printable PDF for diagram._
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Skills checklist
- [ ] Identifies value of each digit
- [ ] Writes expanded form
- [ ] Reads and writes numbers in standard form
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