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add/subtract
multiplication
algebra
ratio proportion
story problems
100

-1-7

-8

100

-2*7

14

100
2x = 18

x=9

100

1:4 = 3:n

n = 12

100
I have 16 pens. You have 12 pens. How many do we have in all?
What is 28 pens
200

-9+7

-2

200

7*-5

-35

200

2/x = 8

x=1/4

200

which is greater  1:4 or 3:15

1:4

200
You have 28 toy cars. I have 46 toy cars. How many more cars do you need to have the same amount that I do?
What is 18 more cars
300

+4+5-12

-3

300

-3*4*-6

+72

300

4x - 9 = -3

x = 3/2

300

5 mm : 4 cm ; Express this ratio in the form 1:n

5mm : 40mm = 1:8 

300
Thirteen people are in our math group. How many hands are there? How many fingers?
What is 26 hands and 130 fingers.
400

+2+5-8-13

-14

400

-3*-8*-3

-72

400

5x - 6+ 16

x = -2

400

The ratio of boys to girls is 4:5. If there are 63 students, how many are a) girls and b) boys

a)28 boys and  b)35 girls

400
I have 52 toy car wheels. How many cars can I build with these wheels?
What is 13 cars
500

-1+2-3+4-5

-3

500

3x(-1+5)

-12

500

(3/5)a = 6

a=10

500

In 6 hours, a man earns Rs 240. How much will he earn in 5 hours? 

Rs. 200

500
I baked 2 dozen cupcakes. Each cupcake had 3 cherries on top. I ate the cherries off 2 of the cupcakes. How many cherries are left?
What is 30 cherries