Multiplication
0x9=
zero
Write the division sentence:
Nine cookies put evenly on three plates. How many cookies will be on each plate?
9 / 3 =3
Break this problem into a know fact, double it, then solve (SHOW YOUR WORK).
8x4=
8x2=16
16+16= 32
What is the definition of the Identity Property of Multiplication?
When any number is multiplied by 1, the product is that number. (It doesn't change).
Use counters to model the know fact, then double it!
6x6= [ ]
See Work
6x3= 18
18+18=36
3x8=
24
8 / 4 =
2
What does it mean to decompose a number?
It means to take a number apart.
What is the definition of the Zero Property of Multiplication?
When you multiply a number by ZERO, the product is always zero.
Double the know fact to solve:
7x4=
See Drawing
7x2=14
14+14= 28
9x4=
36
12 / 4 =
3
Daily Double!!
What is the inverse of multiplication?
Division
True or false:
You can divide by zero, the answer will always be zero.
FALSE!
You can NOT divide by zero.
Pete has 15 shoes, he needs to put them in 3 baskets, how many will go in each basket?
DRAW
See Drawing
5
11x1=
11
Billy had 15 hotwheels, he put them in a display shelf with 3 shelves. How many cars will be on each shelf?
5 cars
What is the definition of "known fact"?
A math fact you know/have memorized.
11 / 1 = [ ]
What property is this problem showing?
Identity
Farmer Brown has 99 sheep, he has 11 stalls in his big barn. How many sheep can sleep in each stall?
DRAW
See Drawing
9
12x0=0
10 / 0 =
You can't divide by zero!
True or False:
You can decompose 3x8 into 3x2, then double it, to get the answer?
False!
Should be 3x4, then double it.
What property is this showing:
12 x 0 = 0
Judy has 100 necklaces. She is putting them on 10 hooks on the wall. How many will be on each hook?
See drawing
10