Multiply By 8
Multiply By 9
Solve for the unknown
Weather
100

8X2

16

100

9X2

18

100

VX6=12

V=2

100

This storm has snow and high winds.

What is a blizzard

200

8X3

24

200

9X3

27

200

5XR=15

R=3

200

This storm has a funnel shaped cyclone and destroys homes when it hits land.

What is a tornado

300

8x6

48

300

9X4

36

300

7X4=K

K=28

300

This storm forms over warm oceans and has an eye.

What is a hurricane?

400

8X7

56

400

9X7

63

400

(5X7) + (4X7)= Y

Y=63

400

Where most of the tornadoes happen in the U.S.

Tornado Alley-central U.S.

500

(10X8)-(1X8)

72

500

Use the 10 - 1 strategy to solve 3X9

10 + 18=28

28-1=27

3X9=27

500

P=5X(16/4)

/ divided by

P=20

500

What category is the strongest hurricane?

Category 5

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