Properties
Whats the commutative property?
Switching factors around does not change the product
Which two expressions could represent the array below?
0 0 0 0
0 0 0 0
0 0 0 0
1x4 and 2x4
or
2x4 and 2x4
A store has 3 books in each display. There are 2 displays on the walls. There are 4 walls. How many books are used in the displays?
3 x 2 x 4
(3x2) x 4
6 x 4 = 24 books
What is the distributive property?
a multiplication facts can be broken apart into two other multiplication facrs
Kate broke up a large array into a 2x6 array and a 3x6 array. What was the large array?
5 x 6
What is the associative property?
the grouping of the factors does not change the product
What makes the equation below correct?
(4x6) + (2x6) = _____
6x6
If someone adds one row of 4 counters onto the array below. Would 3x4 + 2x4 be accurate?
0000
0000
0000
0000
0000
No, because if we add another row there are now 6 rows total. The equation does not represent that. It would represent 4x4 + 2x4