Trimester 1: Skill Videos
Word Probelms
Cubes Strategy
Circle the digits with their label!
Underline the question that the word problem is asking you. Sometimes it can be a statement.
Box math action words- the keywords that help you understand the word problem
Evaluate -- Think what you need to solve all parts of the problem?
Solve- solve all parts of the problem!
CUBES STRATEGY- Mrs. Zimmer
Chapters 1-5 Multiplication and Division
Repeated Addition
When you add the SAME number over and over again.
The first number in multiplication tells you how many groups you have. ( How many times you are adding )
The second number in a multiplication sentence tells you how many in each group. ( the number you are adding)
This strategy can work for ALL multiplication sentences but is the best one for 2 facts, 3 facts, 4 facts, 5 facts, and 10 facts.
Repeated Addition- By Mrs. Zimmer
Distributive Property
Breaking apart larger multiplication facts into two smaller facts.
When we solve our:
6 facts:we use our 5 and 1 facts
7 facts: We use 5 and 2 facts
8 facts: We use 5 and 3 facts
Commutative Property
The order of the numbers does not matter.
Once you learn 3x5= 15, you know that 5x3 =15
Associative Property
When you multiply more than 2 digits, you can group them in any order and you will get the same answer.
6 x5 x 2
(6x5)x2= 30x2=60
6x(5x2)=6 x 10=60
So....
6x(5x2)=(6x5)x2
Relationship between Multiplication and Division
Multiplication is equal groups with the same amount in each group.
Division is breaking up a large number into equal groups.
Multiplying by 2
Rules:
Any number multiplied by 2 is an even number
Double the other factor.
Multiplying by 4
DOUBLE DOUBLE =D
4 x 6=
Think Repeated Addition 6 +6 + 6 + 6
Double the 6---- 6+6= 12
Double the 12----- 12+ 12
4 x 6 = 24