Multiplication
10x0 =
0
5/5=
1
2 x 8= ______ x 2
8
2 x 8 = 8 x 2
One wall at an art gallery has 5 rows of paintings. Each row has 9 rows of painting. How many paintings are on the wall?
5 x 9 = 45 paintings
Jack has 10 pieces of bubble gum and Jill has 5 sticks of gum. How many pieces of gum do Jack and Jill have all together?
10 + 5 = 15 pieces of gum
9x1=
9
0/3=
0
What is the Identity Property? Give an example of an equation.
EX: 5 x 1 = 5
The 14 trumpet players lined up in a row. There was 2 rows of trumpet players. How many trumpet players were in each row?
14/2 = 7 trumpet players
The Sunnyside Riding Stable has 9 horses. The owners are going to buy new horseshoes for all the horses. How many horseshoes are needed?
9 x 4 = 36 horseshoes
9x8=
72
8/0 =
Impossible
What is the commutative property? Give an example
Factors in an equation can be switched, but you will still get the same product.
5 x 3 = 3 x 5
Sadie plans to read 1 book every month for a year. How many books will she read during that time? Must include the correct equation.
12 x 1 = 12 books
To get ready for the school spelling bee, Tanya studied 3 hours each night for an entire week. How many hours did she study?
3 x 7 = 21 hours
6 groups of 7
42
28/4=
(5x8) + (2x8) = 7x8. This is an example of what property?
Distributive Property
A farmer sells pumpkins for $5 each. On Friday the farmer made $35 from the sale of pumpkins. On Saturday he made 50$. How many pumpkins did the farmer sell on Friday and Saturday?
(35/5) + (50/5) = 17 pumpkins
Mrs. Ritzer had 27 erasers. She gave away 9 erasers to some students. How many erasers does Mrs. Ritzer have left?
27 - 9 = 16 erasers
(3x5) x 2 =
30
(40/8) x 3 =
15
Numbers stay the same, groups can change, but will still get the same answer. What property is described? EX: (2x3)x6=2x(3x6)
Associate property
There are 3 groups of 4 bananas in a bowl. There are 2 bowls full of fruit. How many pieces of fruit are there in all the bowls?
(3 x 4) x 2 =24 pieces of fruit
There are 5 black puppies and 3 white puppies in a crate. There are 10 crates. How many puppies are in all the crates?
(5 + 3) x 10 = 80 Puppies