Multiplication
2x4
8
60 years old
What is a prime number?
A number that only has 2 factors, 1 and itself.
Factors of 2
2x7 =
Double, 7+7=14
4x4
16
Michael bought a Nike shirt for $17 and a pair of pants for 2 times as much as the shirt. How much were his pants?
$34
What is a composite number?
A number that has more that 2 factors.
2, 4, 6, 8, 10, 12....
4x7=
double double, 7x2=14, 14x2=28
8x8
64
Shane had $24. Aly had $6. How many times more money did Shane have than Aly?
4 times more money
What is a factor?
Numbers you multiple together to get the product, or number you're looking at.
Factors of 12
1, 2, 3, 4, 6, 12
6x7=
Half-Tens Plus one more group, 5x7=35+7=42
12x11
120 + 11 = 131
There are 6 students in the green group. They each brough 8 packs of paper to school. How much paper will the green group bring?
48 paper packs
What is a multiple?
Multiples of 12
12, 24, 36, 48, 60...
7x9=
Tens minus one set, 7x10=70-7=63
12x12
12x10=120, 120+12=132, 132+12=144
Terri has 2 times as much paper as the entire yellow group. The yellow group has 52 packs of paper. How many packs does Terri have?
A lot of paper. 104 packs!
What is a product?
The answer to a multiplication problem.
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
8x8=
double double double, 8x2=16, 16x2=32, 32x2=64