Adding/Subtracting Decimals
Integers
Dividing fractions
Rational numbers
Multiplying Decimals
100

24.4+12.082

36.482

100

-7-4

-11

100

1 3\5÷1\2

3 1\5

100

Is 1\9 a rational number?

YES

100

12.6×7

88.2

200

56.045-69.9

-13.855

200

-56+-74

-130

200

12 1\2÷1\2

25

200

Is the square root of 81 a rational number?

YES

200

What is 123.456• 156.768

19353.95021

300

123.123+456.456

579.579

300

-4.55+56.4

51.85

300

3÷12 3\4  

0.235

300

Is the decimal of 3/10 a rational number?

Yes 

300

1.0× 1.0

1.0

400

2.2-0.1

2.1

400

-66+-8

-74

400

21 1\2 ÷3 (round to nearest hundreth)

7.17

400

Is the decimal of 7\12 a rational number

No

400

12.0×12.0

144.0

500

69.420+53.67

123.09

500

12-(-65)

77

500

1\9÷1\6

2\3

500

Is the square root of 43 a rational number?

NO

500

4.0×2.5

10