Module 8
Fluently Multiply and Divide
Fluently Multiply and Divide
If you multiply odd x even would the product be even or odd?
EVEN!
If any factor is even the answer will be even.
Any number that has a zero in the ones place is called a multiple of what number?
10
What are at least 2 ways to find the area of this shape?
Count each square, find the number in each row (or column) and use repeated addition, use length x width.
What time is it?
3:43
On a pictograph what is the bottom part called that tells you what each apple represents?
The key
What is the answer to a division problem called?
Quotient
Dividend divided by divisor equals quotient
What is that property that lets us group factors in an equation without changing the product.
(8x2)x5 or 8x(2x5)
Associative Property
A shape like this one that isn’t a square or rectangle is called an __________ shape.
An irregular shape
If you take an afternoon break and ride your bike from 2:23 until 2:59, how long did you ride your bike?
36 minutes
What is the BEST multiplication equation for this array?
3 x 6 = 18
Remember that the ‘x’ says “rows of” so this is
3 rows of 6
3 numbers that are related and make up a set of math facts is called a ….
Fact Family
2 x 3 = 6
3 x 2 = 6
6 ➗ 2 = 3
6 ➗ 3 = 2
Property where you can break up one of the factors into 2 smaller multiplication facts by breaking 1 factor into 2 addends.
6x9
6x(5+4)
Distributive Property
What property is show here to break the shape into 2 shapes to find the area?
Distributive Property
What does finding an estimate mean in math?
Using what you know about measurement to make an accurate guess.
The opposite of multiplication is division. We call this
an ________ operation.
Inverse
Fact fluency means working to get faster with finding products. What is one great way to get faster?
Flash cards, computer games or apps, videos, writing them down, practice worksheets, etc.
If you use a base 10 mat and have a group of ten 10’s what should you do?
Ten 10’s should be grouped together and moved to make one hundred. (and move to the hundreds place)
When we take an irregular shape and break it into 2 regular shapes we are _______ the shape.
Decomposing
How many more liters of liquid are in pot B?
4 liters
What is the answer?
523-158
365
You had to regroup 2 times
What do the letters in CUBES stand for?
Circle
Underline
Box
Eliminate
Solve
What strategy to find the product is being shown here:
Using an open number line
What would be the 2 equations to find the area of this irregular shape?
(5 x 1) + (8 x 2)
5 + 16
21
Is a golf ball about 45 grams or 45 kilograms?
45 grams
What comes next in the pattern:
1, 2, 4, 8, ____
16
The pattern is multiply each number x2 to get the next