Practice Problems — Set 5

1.NBT.C.5 · Given a two-digit number, mentally find 10 more or 10 less than the n…

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

Warm-up

1. Write the value of the underlined digit in 186: ___ 2. 36 = ___ tens + ___ ones 3. Expanded form: 46 = ___ + ___

_See printable PDF for diagram._

Written practice

1. Write the value of the underlined digit in 175: ___ 2. 35 = ___ tens + ___ ones 3. Expanded form: 45 = ___ + ___ 4. Which is greater: 30 or 37? ___ 5. Write the numeral: 6 tens and 8 ones → ___ 6. Round 52 to the nearest ten: ___ 7. Write the value of the underlined digit in 208: ___ 8. 38 = ___ tens + ___ ones

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More written practice

1. Expanded form: 48 = ___ + ___ 2. Which is greater: 33 or 40? ___ 3. Write the numeral: 6 tens and 5 ones → ___ 4. Round 55 to the nearest ten: ___ 5. Write the value of the underlined digit in 241: ___ 6. 41 = ___ tens + ___ ones

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Patterns and rules

1. Write the value of the underlined digit in 362: ___ 2. 52 = ___ tens + ___ ones 3. Expanded form: 62 = ___ + ___

_See printable PDF for diagram._

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Parent tip: Use base-ten blocks or place-value charts