**Topic: Number and Operations >> Applies mental computation strategies to subtraction up to 3 digit numbers.**

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Andrew had 87 marbles with him. He gave 43 marbles to his friend. How many marbles are left with him? | View Details |

Find the difference. | View Details |

Find the difference. | View Details |

Find the difference. 57 - 21 | View Details |

Find the difference. 57 - 21 | View Details |

Subtract: | View Details |

Subtract: | View Details |

Which of the following would you use to find 86 - 42 mentally? | View Details |

Which of the following would you use to find the difference between 65 and 32 mentally? | View Details |

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