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Sientific Notation

100

3 x 10⁷

30,000,000

200

4.25 x 10⁶ 

4,250,000

300

8.39 x10³ 

8,390

400

1.373 x 10⁵

137,300

500

9.174 x 10⁵

917,400

Simplifying Expression

100

u² + 1 + u - 1

u² + u

200

-b + b² - 1 +b² 

2b² - b - 1

300

6 + z + z² +z

u² + 2z + 6

400

u² + 6 u + 6u

u² + 7u +6

500

u- 6u-4u + u²

u² - 9u

First degree equations

100

x + 7 = 22

 x=15

200

x + 15 = 51

X=36

300

x-19=40

X=59

400

x-25=50

X75

500

5x -5 = 2x + 16

x=10

Equations with parentheses

100

(1+3 ) x (2-2)

0

200

(13-(7+8 ) x2

-4

300

(32-(6x5))x2

42

400

(64- (6+4 ) ) x2=

108

500

(97- (8+5) ) x2 

168

supply the missing value in the equation

100

35 + ?  = 7

5

200

8 x ? = 72

9

300

10 + ? =72

2

400

? +9 = 2

18

500

15- ? =6

9