HUNTERTUTORING

Practice Problems — Set 11

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1.OA.B.4 · Understand subtraction as an unknown-addend problem

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

Warm-up

1. 3 + 4 = ___ 2. 7 − 4 = ___ 3. 27 − 3 = ___

_See printable PDF for diagram._

Written practice

1. 6 + 6 = ___ 2. Story: 6 birds, 6 fly away. How many remain? ___ 3. 26 − 6 = ___ 4. Story: 6 apples and 6 more arrive. Total? ___ 5. Story: 6 apples and 6 more. Total? ___ 6. Story: 12 stickers, give away 6. Left? ___ 7. 5 + 6 = ___ 8. Story: 12 stickers, give away 6. Left? ___

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More written practice

1. 29 − 5 = ___ 2. Word problem: 26 marbles, lose 6. How many left? ___ 3. Story: 5 apples and 6 more. Total? ___ 4. Story: 11 stickers, give away 6. Left? ___ 5. 4 + 6 = ___ 6. 10 − 6 = ___

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Patterns and rules

1. 3 + 5 = ___ 2. 8 − 5 = ___ 3. 43 − 3 = ___

_See printable PDF for diagram._

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Parent tip: Draw number bonds or number lines

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All practice problemsBack to 1.OA.B.4