Practice Problems — Set 15

3.NBT.A.2 · Fluently add and subtract within 1000 using strategies and algorithms…

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

Warm-up

1. Write the value of the underlined digit in 296: ___ 2. 46 = ___ tens + ___ ones 3. Expanded form: 56 = ___ + ___

_See printable PDF for diagram._

Written practice

1. Write the value of the underlined digit in 285: ___ 2. 45 = ___ tens + ___ ones 3. Expanded form: 55 = ___ + ___ 4. Which is greater: 40 or 47? ___ 5. Write the numeral: 8 tens and 6 ones → ___ 6. Round 62 to the nearest ten: ___ 7. Write the value of the underlined digit in 318: ___ 8. 48 = ___ tens + ___ ones

___________________________ ___________________________ ___________________________ ___________________________

More written practice

1. Expanded form: 58 = ___ + ___ 2. Which is greater: 43 or 50? ___ 3. Write the numeral: 8 tens and 3 ones → ___ 4. Round 65 to the nearest ten: ___ 5. Write the value of the underlined digit in 351: ___ 6. 51 = ___ tens + ___ ones

___________________________ ___________________________ ___________________________ ___________________________ ___________________________

Patterns and rules

1. Write the value of the underlined digit in 472: ___ 2. 62 = ___ tens + ___ ones 3. Expanded form: 72 = ___ + ___

_See printable PDF for diagram._

___________________________ ___________________________ ___________________________ ___________________________

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