adding fractions
subtracting fractions
equivalent fractions
Math review
Mystery
100
4/8 + 3/8
What is 7/8?
100
18/21 - 13/21
What is 5/21?
100
1/2 =
What is 2/4, 3/6, 5/10, etc.?
100
2,107 + 904 =
What is 3,011?
100
The fraction seen here.
What is 3/5?
200
1 2/7 + 4/7
What is 1 6/7?
200
1 6/9 - 2/9 - 4/9
What is 1 whole?
200
3/4 =
What is 6/8, 9/12, etc.?
200
DAILY DOUBLE!
32,031 - 1,811?
What is 30,220?
200
The purple sea urchins seen here are hunted by a very important sea mammal. 
What is a sea otter?
300
8/13 + 9/13 as a mixed number.
What is 1 4/13?
300
1 1/10 - 3/10
What is 8/10?
300
9/8 =
What is 18/16, 27/24, etc.?
300
DAILY DOUBLE!
6 x 377 =
What is 2,602?
300
Karana makes clothes from the feathers of this bird.
What is a cormorant?
400
DAILY DOUBLE!
9/15 + 4/15 + 6/15 as a mixed number.
What is 1 4/15?
400
1 6/10 - 2/10 - 5/10
What is 9/10?
400
1 2/4 as an improper fraction =
What is 6/4?
400
6 divided by 1,270 =
What is 211 R4?
400
The image seen here is an example of this technique for making clothes, used commonly by many Californian Native American tribes.
What is weaving?
500
4/5 + 4/5 + 4/5 as a mixed number.
What is 2 2/5?
500
2 1/8 - 7/8 -7/8
What is 3/8?
500
2 2/7 as an improper fraction =
What is 16/7?
500
32 x 32 =
What is 1,024?
500
Mr. Patrick told us that vegetables of this color have the superior health benefits.
What are green vegetables. (kale, spinach, broccoli, etc.)