Practice Problems — Set 11
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. Talk through today's focus: Fluently add and subtract within 1000 using strategies and algorithms… 2. Try one oral example together before writing. 3. Use the diagram to explain your thinking.
_See printable PDF for diagram._
Written practice
1. Write the value of the underlined digit in 241: ___ 2. 41 = ___ tens + ___ ones 3. Expanded form: 51 = ___ + ___ 4. Which is greater: 36 or 43? ___ 5. Write the numeral: 8 tens and 8 ones → ___ 6. Round 58 to the nearest ten: ___ 7. Explain your thinking for set 11 in one sentence. 8. Create your own problem for 3.NBT.A.2.
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More written practice
1. Apply Fluently add and subtract within 1000 using strategies and algorithms… (item 9, set 11): show your work. ___ 2. Apply Fluently add and subtract within 1000 using strategies and algorithms… (item 10, set 11): show your work. ___ 3. Apply Fluently add and subtract within 1000 using strategies and algorithms… (item 11, set 11): show your work. ___ 4. Apply Fluently add and subtract within 1000 using strategies and algorithms… (item 12, set 11): show your work. ___ 5. Apply Fluently add and subtract within 1000 using strategies and algorithms… (item 13, set 11): show your work. ___ 6. Apply Fluently add and subtract within 1000 using strategies and algorithms… (item 14, set 11): show your work. ___
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Patterns and rules
1. Each place is ten times the place to its right. 2. Compare from the largest place first. 3. Expanded form shows the value of each digit.
_See printable PDF for diagram._
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Parent tip: Use base-ten blocks or place-value charts