Multiples
List the first ten multiples of 7.
What is 7, 14, 21, 28, 35, 42, 49, 56, 63, 70?
To find 7 times 32, I double and halve, then solve
7 times 32 = 14 times 16 = 224
When adding or subtracting fractions, there must be like _____, which means they are the same.
Denominators
What does Greatest Common Factor mean?
The greatest factor that can divide evenly into two (or more) numbers.
2,300 is _______ hundreds
23
Which of these numbers are multiples of 3? 21, 24, 45, 30, 42, 60, 84
All of them.
Complete the following equation:
4 x 67 = _______ x (2 x 67)
3/8 + 10/12
What is 1 and 5/24 ?
What is the LCM of 14, 21, and 42?
42
The mountain was 34,578 ft tall. About how many thousand feet is that?
35
EXTRA QUESTION! ALL TEAMS COMPETE! Two TV movies start at 8:00 p.m. One channel airs commercials every 6 minutes. The other channel airs commercials every 9 minutes. What time will the two channels have commercial breaks at the same time?
8:18, 8:36, 8:54
A box holds 448 balls. Each layer has 28 balls. How many layers does the box have?
16 layers
3/8 + 2/9
What is 43/72 ?
Which of these numbers are common multiples of 8 and 3? 32, 54, 72, 66, 48, 96
72, 48, 96
What is the value of 7 in 798,302?
700,000 or 7 thousands
What are the first three common multiples of 3 and 9?
9, 18, 27
Thao says she can find the answer to 8 x 90 by halving 8 and doubling 90 again and again until she gets down to 1 x 720. Is she correct? Show your work.
Yes, she is correct.
4 9/13 - 2 6/7
What is 2 76/91 ?
What is the LCM of 5, 12, 20, 30?
60
What is 777,789 rounded to the nearest ten thousand?
780,000
Taho plays shinny every 2 days. He plays lacrosse every 3 days. Suppose Taho plays shinny and plays lacrosse on October 1st. What are the next 3 dates he will play both?
October 7th, 13th and 19th.
Write an expression for the calculation: To find 38 times 14, I multiply 30 times 14 and 8 times 14 and add the two products together.
(30 x 14) + (8 x 14)
9/16 + 98/96
What is 1 7/12?
What is the GCF of 16, 24, 96, and 120?
8
Jan had 834 marbles, and Jill had 935 marbles. About how many marbles did they have in all?
About 1700