Rounding
If you round 247,982 to the nearest thousands, what would you get?
248,000
List the factor pairs of 12.
(1,12) (2,6) (4,3)
Is the number 7 prime or composite?
Prime
If the pattern is increasing by 3, what comes after 12?
15.
482,736 + 217,489 = ?
700,225
629,407,148
Millions, Thousands, Ones
How do you know when you are done finding factors in a factor rainbow?
When a factor repeats.
Composite
Determine the rule in this pattern. 3,9,27,36
Multiply by 3
905,427 – 368,215 = ?
537,212
Round 24,536 to the nearest hundreds
24,500
Yes. 3x3=9
True or False: ALL odd numbers are prime.
False, some odd numbers are composite.
Multiplication or Addition
76,592 + 84,309 = ?
160,901
The city of Greenfield has 782,456,329 people living in it.
The mayor wants to share the population in a report, but she wants to round it to make it easier to read.
What is the population rounded to the nearest million?
782,000,000
List all factors of 35.
(1x35) (5x7)
Is 21 a prime number? Why or why not?
In a number pattern, if the numbers are decreasing, what functions could be happening?
Subtraction or Division
Lincoln Elementary raised 253,489 dollars during their first fundraiser and 346,278 dollars during their second one.
How much money did they raise in total?
599,767
NASA scientists discovered that a new space telescope can capture images of 648,725,391 stars in one section of the sky!
About how many stars is that when rounded to the nearest ten million
650,000,000
Is 15 a factor of 45? If so, what is the factor pair?
Yes. (15x3)
What is the definition of a prime number?
A prime number is a number that only has two factors (one factor pair). 1 and itself.
Create a pattern using the numbers 2, 5, and 8. What would the next three numbers be?
The city zoo had 678,912 visitors last year. This year, they had 594,385 visitors.
How many fewer visitors did the zoo have this year than last year?
84,527