HUNTERTUTORING

Practice Problems — Set 19

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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 + 6 = ___ 2. 9 − 6 = ___ 3. 35 − 3 = ___

_See printable PDF for diagram._

Written practice

1. Explain your thinking for this word problem in one sentence. 2. Create your own word problem for 1.OA.B.4. 3. Story: 6 apples and 5 more arrive. Total? ___ 4. Story: 11 stickers, give away 5. Left? ___ 5. Story: 6 apples and 5 more. Total? ___ 6. Story: 11 stickers, give away 5. Left? ___ 7. Word problem: 34 marbles, lose 6. How many left? ___ 8. Story: 6 birds, 5 fly away. How many remain? ___

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More written practice

1. 37 − 5 = ___ 2. Fill in: 7 + ___ = 12 3. Story: 5 apples and 5 more. Total? ___ 4. Story: 10 stickers, give away 5. Left? ___ 5. 4 + 5 = ___ 6. 9 − 5 = ___

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Patterns and rules

1. 3 + 4 = ___ 2. 7 − 4 = ___ 3. 51 − 3 = ___

_See printable PDF for diagram._

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Stretch

1. Explain your thinking for this word problem in one sentence. 2. Create your own word problem for 1.OA.B.4.

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Parent tip: Draw number bonds or number lines

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All practice problemsBack to 1.OA.B.4