Addition
Boats & submarines
multiplication
Decimals & fractions
Division
100

462+275=

737

100

What do you put under a boat to help it go straight

A keel

100

627x12

7,524

100

0.5=what fraction 

5/10

100

38/2

19

200

837+795=

1632

200

What is boat speed measured in

Knots 

200

5,672x6

34,032

200

0.53=what fraction 

53/100

200

1584/8=

198

300

961+786=

1747

300

What was probably the most deadly submarine weapon 

Torpedo 

300

15,384x8

123,072

300

0.846=what fraction 

846/1,000

300

2584/8

323

400

9,741+4,625=

14,363

400

What is the weight a boat carries called 

the ship             the weight 

the load             the rock 

The load 

400

7,652x15

114,780

400

0.16+0.37=what fraction 

53/100

400

7462/7

1066

500

1,835,427+254,685=

2,060,112

500

What do you call the tubes full of air or water on a submarine

Pontoon 

500

1,572,391x8

12,579,128

500

0.54+0.84

1.38

500

9,624/8

1,203