Practice Problems — Set 12

5.OA.A.1 · Use parentheses, brackets, or braces in numerical expressions, and ev…

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

Warm-up

1. 8 + 9 = ___ 2. 17 − 9 = ___ 3. Draw a picture for 8 + 9. Write the equation.

_See printable PDF for diagram._

Written practice

1. Story: 7 birds land on a branch. 8 more join. How many now? ___ 2. 15 − 8 = ___ 3. Story: 15 cookies on a plate. Eat 8. How many left? ___ 4. Story: 7 birds and 8 more land. How many now? ___ 5. Story: 15 cookies, eat 8. How many left? ___ 6. Write an equation for your drawing: ___ + ___ = ___ 7. Two-step: 7 red and 8 blue marbles, then lose 1. How many now? ___ 8. 18 − 8 = ___

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More written practice

1. Word problem: 7 stickers plus 8 more. Total? ___ 2. Story: 10 birds and 8 more land. How many now? ___ 3. Story: 18 cookies, eat 8. How many left? ___ 4. 9 + 8 = ___ 5. 17 − 8 = ___ 6. Draw a picture for 9 + 8. Write the equation.

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Patterns and rules

1. 8 + 10 = ___ 2. 18 − 10 = ___ 3. Draw a picture for 8 + 10. Write the equation.

_See printable PDF for diagram._

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Parent tip: Act out story problems with objects