Decimals
(Add/Subtract)
Decimal
(Multiply / Divide)
Integer
(Add/Subtract)
Integer
(Multiply / Divide)
Convert percent and decimals
100

-0.8 - 0.9

-1.7

100

0.213 ÷ 0.3

0.71

100

-13+8

-5

100

-9 x 3

-27

100

0.342 to percent 

34.2%

200

0.291 + 0.126

0.417

200

-0.2 x -0.18

0.036

200

17 + (-23)

-6

200

-12 ÷ -3

4

200

67% to decimals

0.67

300

0.28 + 0.94

1.22

300

1.26 ÷ 0.6

2.1

300

-12 + (-8)

-20

300

-81 ÷ 9

9

300

0.821 to percent 

82.1%

400

0.783 - 0.258

0.525

400

0.14 x 1.23

0.1722

400

Mystery 

Take the points from the leading team

400

64 ÷ (-2)

-32

400

1.2% to decimal 

0.012

500

-0.349 - (-0.234) 

-0.115

500

9 ÷ 0.189 

47.62

500

-9 + 9

0

500

-110 ÷ 10

-11

500

71% to decimal 

0.71