LCM
Lowest common multiple for 24 & 36.
What is the LCM of 72.
Common factors of 49 and 14.
What are 1 and 7?
Forms a factor pair with 12 to give 48
What is 4?
School cafeteria serves pizza every 6th day and applesauce every 8th day. When will they both be served on the same day?
What is 24 days?
Lowest common multiple for 20-25
What is the LCM of 100?
Common factors of 140 and 25.
What are 1 and 5?
Forms a factor pair with 11 to give 110.
What is 10?
A jet travels 60 km in 5 minutes. How many kilometers will it travel in 2 hours? In 6 hours?
What is 1,440 km? What is 4,320 km?
Lowest common multiple of 42 and 14.
What is the LCM of 42?
Common factors of 142 and 148.
What is 1 and 23?
Forms a factor pair with 6 to give 48.
What is 8?
Suppose that there is a star with four orbiting planets. One planet makes a trip around a star in 6 Earth years. The 2nd planet takes 9 Earth years. The 3rd takes 15 years, and the 4th takes 18 years. When will all the planets line up?
What is 90 years?
Common multiples of 30 and 12
What is the common multiple 60?
The largest common factor of 84 and 105.
What is a GCF of 21?
Forms a factor pair with 11 to give 121.
What is 11?
Find a set of numbers that satisfies the following conditions: 1. The GCF of two numbers is prime. 2.The LCM of two numbers is composite.
What is 4 and 6?
Common multiples between 1-100 of 8 and 12.
What are the common multiples of 24, 48, 72, and 96?
The largest common factor of 140 and 25.
What is a GCF of 5?
Use factor, divisor, multiple, product, and divisible by to write statements about 7 X 9 = 63.
Why is 7 is a factor of 63? Why is 9 is a factor of 63? Why is 9 is a divisor of 63? What is the product of 7 and 9? Why is 63 divisible by 9?
Mario's watch runs fast. In 1 day, it gains an hour. So in 12 days, it gains 12 hours. Julio's watch runs fast. In 1 day, it gains 20 minutes. Suppose they both set their watches at 9:00 AM on Monday. When will the next time be that they show the correct time together?
What is 36 days or the 6th Tuesday at 9:00 AM?