HUNTERTUTORING

Practice Problems — Set 16

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2.OA.C.3 · Determine whether a group of objects (up to 20) has an odd or even nu…

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

Warm-up

1. 5 + 7 = ___ 2. 12 − 7 = ___ 3. 37 − 4 = ___

_See printable PDF for diagram._

Written practice

1. Word problem: 36 marbles, lose 3. How many left? ___ 2. Story: 4 birds, 6 fly away. How many remain? ___ 3. Two-step: Start with 10, add 3, then subtract 2. Result? ___ 4. Explain your thinking for this word problem in one sentence. 5. Story: 4 apples and 6 more. Total? ___ 6. Story: 10 stickers, give away 6. Left? ___ 7. Create your own word problem for 2.OA.C.3. 8. Story: 4 apples and 6 more arrive. Total? ___

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More written practice

1. 39 − 6 = ___ 2. Fill in: 7 + ___ = 14 3. Story: 7 apples and 6 more. Total? ___ 4. Story: 13 stickers, give away 6. Left? ___ 5. 6 + 6 = ___ 6. 12 − 6 = ___

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Patterns and rules

1. 5 + 5 = ___ 2. 10 − 5 = ___ 3. 53 − 4 = ___

_See printable PDF for diagram._

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Stretch

1. Word problem: 36 marbles, lose 3. How many left? ___ 2. Story: 4 birds, 6 fly away. How many remain? ___

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Parent tip: Draw number bonds or number lines

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