Decimals Jeopardy

Adding Decimals

100

0.1+0.2+0.3+0.4+0.5+0.6+0.7+0.8+0.9+1

What is 5.5?

Note: There 10 numbers

200

0.1+0.3+0.5+0.7+0.9+1.1+1.3+1.5+1.7+1.9

What is 10?

Note: There are 10 numbers and n²

300

0.2+0.4+0.6+0.8+1+1.2+1.4+1.6+1.8+2

What is 11?

Note: There are 10 numbers and n(n+1)

400

0.1+0.2+0.3+0.4…+99.7+99.8+99.9+100

What is 50050?

Note: There are 1000 numbers

Subtracting Decimals

100

Solve 11.11-(0.01+0.1+1+10)

What is 0?

200

0.1-(-1)-(-10)-(-11.1)-(-11.1*7)

What is 99.9?

300

111-11.1-10-1.1-1

(You’re welcome)

What is 87.8?

400

Solve 1111-111.1-111-11.1-11-10-1.1-1-0.1

What is 854.6?

Multiplying Decimals

100

Solve 0.1² and 0.1³

(Don’t add them together)

What is 0.01 and 0.001?

200

Solve 1.1² and 1.1³

(Don’t add them together)

What is 1.21 and 1.331?

300

Solve 0.1*1*1.1*10*11

What is 12.1?

400

Solve 0.1*1*1.1*10*11*11.1

What is 134.31?

Dividing Decimals

100

Solve 11/1.1/0.1/1/10

What is 10?

200

Solve 100/10/1/0.1/0.01

What is 10,000?

300

Solve 121/11/1.1/1/0.1

What is 100?

400

Solve 121/11/1.1/1/0.1/0.01/0.1/1/10/100

What is 100?