Topic 1

Rational or Irrational?

100

0.bar3

Rational

200

0.10110111011110...

Irrational

300

sqrt361

Rational

Calculator Skills

100

2.73*17

46.41

200

5 3/7 div 20/21

5.7

300

sqrt(2.5*125/128)

25/16

Scientific Notation

100

Is

19 xx10^7

in scientific notation?

No

200

Convert 3,100,000 to scientific notation.

3.1 xx 10^6

300

Convert 0.0000333 to scientific notation.

3.33 xx 10^-5

Exponents

100

5^3*2^3=?

5^3*2^3=(5*2)^3=10^3=1000

200

4^3*4^5=?

4^3*4^5=4^((3+5))=4^8=65,536

300

3^18/3^15=?

3^18/3^15=3^((18-15))=3^3=27