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Add and Subtract
Multiply
Divide
Changing Forms
Surprise
100

Answer in simplest form: 1⁄10 + 7⁄10 =

4⁄5

100
2⁄3 · 1⁄5 =
2⁄15
100

2⁄3 ÷ - 2 =

1⁄3

100

Change to decimal form: 3 2⁄7

100
Four sevenths of the students in a room are boys. There are 28 boys in the room. How many students are in the room?
49
200

-  4⁄5 + 5⁄7 =

200

Answer in simplest form: - 2⁄3 · - 3⁄4 =

1⁄2

200

2⁄3 ÷ 1⁄3

2

200

Change to mixed number form: 32⁄7

4 4⁄7

200
Ellen ate five elevenths of her candy. She has 174 grams of candy left. How much candy did she start with?
319 grams
300

Answer in blandad form: - 21 2⁄13 - 3 4⁄13 =

300

Answer in simplest form: 1⁄2 · 2⁄3 · 3⁄4 · 4⁄5 =

1⁄5

300

- 3⁄5 ÷ - 6⁄5

1⁄2

300

Change 4⁄5 to a decimal

0.8

300
How many fractions are there between 5⁄7 and 6⁄7? If you think the answer is one or more, write one of them down.
Infinite. Example: 11⁄14
400

3⁄14 - 2⁄7 =

400

- 2 2⁄3 · 3 1⁄5 =

128⁄15

400
5⁄7 ÷ 2⁄3
15⁄14
400

Change 12.4 to a fraction and simplify.

400
A group of ninjas are going to visit Lotta. On the way they are attacked by a group of evil elves and only 2⁄5 of the ninjas survived. A short time later they are attacked by evil chickens and 25% of the ninjas that are left are killed. In the end, only 27 ninjas make it to visit Lotta. How many ninjas were there from the start?
90
500

a⁄b + c⁄d =

ad+cb⁄bd

500

Answer in simplest form: (1-1⁄2)(1-1⁄3)(1-1⁄4)(1-1⁄5)(1-1⁄6)(1-1⁄7) =

1⁄7

500

21⁄3 ÷ -11⁄3

7⁄4

500

Describe where 29⁄19 should go on a number line

A little bit more than 1.5

500
All the sides of a square are made 1⁄10 longer. How much bigger is the area of the square?
21⁄100