Riddles
100
How can you write nineteen and eighty-two hundredths
What is 19.82
100

The place value of the 5 in 125,487

What is the thousands place

100

write the expression using words: n less than seven

7-n

100

write the expression using words: twice n

2n

100

How many months of the year have 28 days?

All of them! Every month has *at least* 28 days

200

order these from least to greatest:

12.567, 11.67, 12.6, 11.8

11.67, 11.8, 12.567, 12.6

200
Subtract: 80.0-39.6
What is 40.4
200

What is the area of a square with the length of 4 and a height of 7?

A=28

200

Solve:

83.781 - 15.425

68.356

200

It belongs to you, but your friends use it more. What is it?

300

What is the coordinate of point A?

(5,-2)

300

3.24 + 2.7 =

5.94
300
What is 8.01
300

The place value of 3 in 472.139 is....

hundredths

300

What was the witch's favorite subject in school?

Spelling!

400

Simplify and Solve

4 * 6^3

864

400

what is 0.25 as a percent?

25%

400

x2 + y2 - 2

if x=8, y=6

98

400

what is this number in absolute value? [-745]

745

400

Why was the teacher suspicious of prime numbers?

Because they were all odd!

500

reduce 25/40

5/8

500

Find the GCF of 48 and 64

16

500

Simplify by Combining like terms:

3x + 2y + 7z - x + 3y - 2z - 8

2x + 5y + 5z -8

500

Write these numbers from Least to Greatest:

-0.30, 1/4, 0, -1, and 30%

-1, -0.30, 0, 1/4, 30%

500

What 2 things can you never eat for breakfast?

Lunch and dinner.

600

Name 3 prime numbers

1,3,5,11,13,17,37...

600

Liam was tired last Friday.

He usually gets up at 7:30 a.m. Since he was tired, he got up 1 hour and 45 minutes later than usual. What did he get up?

9:15 am

600

solve: 5y=45

y=9

600

Evaluate the expression:  5X=25

X=5

600

Why didn't the 4s feel like dinner?