Rounding
Round 64 to the tens place.
60
Is this the Commutative Property, Associative Property, or Identity Property?
4 + 1 = 5 1 + 4 = 5
Commutative Property of Addition
What is a digit?
There are 9 bird nests in a tree. There are a total of 18 eggs in the nests. Each nest has the same number of eggs. How many bird eggs are in each nest?
2 eggs
36,847 + 14,268
51,115
Round 1,256 to the thousands place.
1,000
Is this the Commutative Property, Associative Property, or Identity Property?
(5 + 2) + 3 5 + (2 + 3)
Associative Property of Addition
What is expanded form?
The representation of a number as a sum that shows the value of each digit.
List 2 factor pairs of 24
1 x 24
2 x 12
3 x 8
4 x 6
If 700 tickets were sold for a concert and only 587 people attended, how many people bought a ticket but did not attend?
113
Round 104,229 to the nearest ten thousands place.
100,000
Is this the Commutative Property, Associative Property, or Identity Property?
8 + 0 = 8 0 + 8 = 8
Identity Property of Addition
What is a minuend?
The number from which another number number is subtracted.
1,000 - 17 = 983
List 5 multiples of 8
0, 8, 16, 24, 32, 40, 48...
90,000 - 24,074
65,926
A warehouse stores cans of paint. There is a 3 in the hundreds place, a 7 in the thousands place, and an 8 in the rest of the places. This number has 5 digits. How many cans of paint are in the warehouse?
87,388
Which property is used here?
18 + 0 = 18
Identity Property of Addition
What is a factor?
A number that divides a whole number evenly. Also, a number that is multiplied by another number.
2 x 2 = 4
The World of Maps store displays its maps on 3 shelves. There are 26 world maps on each shelf. How many world maps does the store have to sell?
78 maps
Bailey had 75 beads. She used 20 of them on a necklace and 12 of them on a bracelet. Then she bought 25 more beads. How many beads does Bailey have now?
68 beads
Round 708,569 to the nearest ten thousands place.
710,000
Which property is used here?
(17 + 4) + 5 17 + (4 + 5)
Associative Property of Addition
What is a divisor?
The number by which the dividend is being divided.
19/3There are 10 fewer robins than cardinals. There are 3 times as many bluebirds as robins. There are 16 cardinals. How many bluebirds are there?
18 bluebirds
May's parents have $150 to spend at the beach. It will cost $70 to rent a boat, $15 for snorkels, and $25 for lunch. If May pays for lunch with her own money, how much money will her parents have left?
$65