A **number pattern** is a list of numbers that follows a certain rule.

Identify the rule of the pattern.

Each number in the pattern is 3 more than the number before it.

33 + 3 | = | 36 |

36 + 3 | = | 39 |

39 + 3 | = | 42 |

42 + 3 | = | 45 |

So, the rule is add 3.

To find the next two numbers in the pattern, add 3 to 45, and then add 3 again.

The next two numbers in the pattern are 48 and 51.

Use multiplication to count groups of 6.

Number of Cartons | Number of Cartons × 6 Eggs
[in each carton] | Total Number of Eggs |

1 | 1 × 6 | 6 |

2 | 2 × 6 | 12 |

3 | 3 × 6 | 18 |

4 | 4 × 6 | 24 |

So, Mandy could count 6, 12, 18, 24, and so on.