Week 4

Scientific Notation

100

Convert to standard notation: 

4.7*10^4

47,000

200

Convert to scientific notation: 25,360

2.536*10^4

300

Convert to standard notation: 

4.38*10^-5

0.0000438

400

Convert to scientific notation: 734,200

7.342*10^5

500

Convert to scientific notation: 0.0003005

3.005*10^-4

Adding & Subtracting Integers

100

3+-7

-4

200

-5--3

-2

300

12+-20

-8

400

100--20

120

500

-35--40

5

Rounding

100

Round 1245 to the nearest ten

1250

200

Round 0.334 to 1dp

0.3

300

Round 1845 to 2sf

1800

400

Round 13.899 to 2 dp

13.90

500

Round 1986 to 2 sf

2000

Multiplying & Dividing Integers

100

3*-5

-15

200

(-24)/(-4)

6

300

-6*-5

30

400

(-120)/(2)

-60

500

(-5)*(-4)*(-2)

-40

True or False

100

"negative times positive equals positive"

false

200

The number is in Scientific Notation:

3.14*10^5

True

300

taking away a negative makes the answer more negative

false! 

-- = +

400

The number is in Scientific Notation:

1.4*10^-5

True

500

adding a negative makes the answer more negative

true!
+- = -