Mental Math Subtraction Test – Grade 4



|Mental Math Subtraction Test – Grade 4 |[pic] |

|Name: ________________________ | |

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|Remember your strategies! | |

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|Backwards leap-frog strategy | |

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|Foot long sub strategy | |

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|Subtraction as DISTANCE between numbers | |

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|Traditional strategy | |

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|Knowledge (demonstrate understanding of concept of subtraction using various mental| |

|math strategies) | |

Answer the following questions using any math strategy (show your work!).

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Thinking level ____ Communication level ___

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Application / Communication (Application – apply knowledge to context/problems)

(Communication – convey meaning clearly using math vocabulary)

1. Mrs. Kershaw had 565 markers that were being used in an art project for two classes. The two classes worked very hard and created at least 60 different pieces of art. When they were done, 285 markers were dried up and had to be thrown out. So Mr. Wendler went out and bought 250 more markers for Mrs. Kershaw. In the end, how many markers did Mrs. Kershaw have?

(Remember to label work, explain your thinking, and write a sentence answer)

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