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

  1. Double the 6---- 6+6= 12

  2. Double the 12----- 12+ 12

  3. 4 x 6 = 24