Unit 1 - Bridges Math

Multiplication

100

2x4

8

200

4x4

16

300

8x8

64

400

12x11

120 + 11 = 131

500

12x12

12x10=120, 120+12=132, 132+12=144

Story Problems

100

Sara is 10 years old.  Her uncle is 6 times older than her.  How old is her uncle?

60 years old

200

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

300

Shane had $24. Aly had $6.  How many times more money did Shane have than Aly?

4 times more money

400

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

500

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!

Define Math Terms

100

What is a prime number?

A number that only has 2 factors, 1 and itself.

200

What is a composite number?

A number that has more that 2 factors.

300

What is a factor?

Numbers you multiple together to get the product, or number you're looking at.

400

What is a multiple?

The number you get when you multiply by another number.

500

What is a product?

The answer to a multiplication problem.

Give the Factors or Multiples

100

Factors of 2

1, 2

200

Multiples of 2

2, 4, 6, 8, 10, 12....

300

Factors of 12

1, 2, 3, 4, 6, 12

400

Multiples of 12

12, 24, 36, 48, 60...

500

All the factors of 48

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Name the Strategy

100

2x7 = 

Double, 7+7=14

200

4x7=

double double, 7x2=14, 14x2=28

300

6x7=

Half-Tens Plus one more group, 5x7=35+7=42

400

7x9=

Tens minus one set, 7x10=70-7=63

500

8x8=

double double double, 8x2=16, 16x2=32, 32x2=64