Vocabulary
Place Value
The value of each digit in a number
What is 143 rounded to the nearest ten?
140
Which number is bigger?
125,300 or 125,030
125,300
20 = _____ tens
2 tens
New York has an area of 121,298 square miles. California has an area of 155,779 square miles. How much greater is the area of California than the area of New York?
You subtract to find the answer
Estimate
To find a reasonable answer by rounding
What is 567 rounded to the nearest hundred?
600
Which number is smaller?
343,565 or 334,600
334,600
1,400 = _____ hundreds
14 hundreds
Sophia and Maria went to the mall to buy some snacks for movie night. Sophia has 15 dollars and Maria has 10 dollars more than Sophia. How much money do they have together?
You have to add to find the answer
Period
Each group of digits separated by a coma in a number.
What is 1,750 rounded to the nearest thousands
2,000
Which number is bigger?
600,600 or 600,006
600,600
13 hundreds = ______ thousands _____ hundreds
1 thousand 3 hundreds
Hot air balloons are able to fly pretty high. In 1988 a world record height of 64,997 feet was set. In 2005 a new record of 68,986 feet was set. How many feet higher was the 2005 record than the 1988 record?
You have to subtract
Commutative Property
States you can move the numbers around in any order in a addition problem and still get the same answer
What is 442,677 rounded to the nearest ten thousands
440,000
Which number is smaller?
783,679 or 783,697
783,679
740,000 = _______ ten thousands
74
During an event, a hot air balloon traveled a distance of 5,110 feet during the first trip and 850 feet more during the second trip. How far did it travel during the second trip?
You have to add and then subtract
Associative Property
States you can group numbers with parenthesis in any order and still get the same answer when adding
What is 998,233 rounded to the nearest hundred thousands
1,000,000
Which number is bigger?
998,989 or 999,998
999,998
570,000 = 57 _______________
ten thousands
Jonnathan, Nathan, and Hailee are playing an online game. Jonnathan scores 105,445 points. Nathan scores 9,678 fewer points than Jonnathan and Hailee scores 6,786 more points than Nathan. What is Hailee's score?
You subtract and you add to find the answer