Arrays
Equal Groups
Repeated Addition
100
The operation that is represented by an array
What is multiplication?
100
4 groups of 5
What is 20?
100
5+5+5+5+5
What is 25?
200
An array with 2 rows of 2
What is 2 x 2?
200
10 groups of 8
What is 80?
200
A multiplication problem that is the same as 4+4+4
What is 4x3?
300
An array with 4 rows of 3
What is 4 x 3?
300
A multiplication fact containing 2 groups of 4
What is 2 x 4?
300
An addition problem that is the same as 2x8
What is 2+2+2+2+2+2+2+2?
400
An array with 25 blocks
What is 5x5 or 25x1 or 1x25?
400
The answer to this story problem: There are 4 5th grade classes at Eason Elementary. Each class has 25 students. How many 5th grade students are there in all?
What is 100?
400
The answer to this story problem: 10 kids are waiting for the bus. 10 more arrive at the bus stop. 10 more arrive again. How many students are waiting for the bus in all?
What is 30?
500
6 x 5
What is an array with 6 rows of 5 or 30?
500
A story problem that explains this equation: 3 x 5
What is (Answers vary)?
500
A story problem that explains this equation: 6+6+6+6
What is (Answers vary)?