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

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Add mentally. | View Details |

Add mentally. | View Details |

Add mentally. | View Details |

Add mentally. | View Details |

Find the sum of 27 and 51. | View Details |

Find the sum of 44 and 64. | View Details |

Find the sum of 68 and 22. | View Details |

Michael had | View Details |

There are 23 computers in the first room, 43 computers in the second room and 53 computers in the third room. Find the total number of computers in all the three rooms. | View Details |

There are 25 blue and 35 red marbles in a bag. Find the total number of marbles in the bag. | View Details |

Which of the following would you use to find 35 + 53 mentally? | View Details |

Which of the following would you use to find 43 + 57 mentally? | 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 |

Which of the following would you use to find the sum of 24 and 36 mentally? | View Details |

Which of the given instructions would you use to find the sum of 46 and 33 mentally? | View Details |

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