Grade 4 - Ottawa Bansho | Insight into the 3 Part Math Lesson



|Mental Math Subtraction Test – Grade 5 |[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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|Distance keeper | |

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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. Ms. Sarte-Dance found 4 565 marbles in the art cupboard that she wanted to use for an art project. She used them with Mrs. Kershaw’s class. They worked very hard and created at least 60 different pieces of art. When they were done 3 287 marbles were used up. Mr. Wendler wanted to do the project with his class too, so he went out and bought 2 650 more marbles for the art supply cupboard. How many marbles were there in the art cupboard for Mr. Wendler to use?

(Show your work. Include explanations and labels. Have a sentence answer.)

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