Multi-Digit Multiplication
More Multi-Digit Multiplication
Even More Multiplication
Brain Teasers
Things Only I Know
100

5.04 x 8 = 

40.32

100

904 x 32 = 

28,928

100

65 x 60

3,900

100

What number goes up and doesn’t come back down?

Your age.

100

Who's buried in Grant's Tomb?

Grant

200

0.56 x 432 = 

241.92

200

456 x 16 = 

7,296

200

120 x 65

7,800

200

If you buy a rooster for the purpose of laying eggs and you expect to get three eggs each day for breakfast, how many eggs will you have after three weeks?

Zero

200

How many colors does a rainbow have?

Seven

300

83.41 x 504 = 

42,038.64

300

83.6 x 26 = 

2,173.6

300

180 x 65

11,700

300

If you multiply this number by any other number, the answer will always be the same. What number is this?

Zero

300

What was the name of the toy first advertised on TV?

Mr. Potatohead

400

147.83 x 67 = 

9,904.61

400

48.3 x 39 = 

1,883.7

400

240 x 65

15,600

400

If it took 6 people 9 hours to build a barn, how long would it take 12 people to build the same barn?

None. It's already built!

400

Which US state only borders one other?

Maine

500

4,208 x 606 = 

2,550,048

500

1692 x 36 = 

60,912

500

300 x 65

19,500

500

A 300 ft. train is traveling 300 ft. per minute and must travel through a 300 ft. long tunnel. How long will it take the train to travel through the tunnel?

Two minutes because it takes the front of the train one minute and the rest of the train will take two minutes to clear the tunnel.

500

Can you name the first song heard in the Lion King? Bonus points for who sang it!

The Circle of Life. Elton John