Graden 7 math

roots

100

root of 121

11

200

root of 144 + root of 196

25

300

( √ 400+ √ 225)x 3^√125= 

175

400

(3√5-2√5)x2√5=

2√5

500

 √9/25+ √36/49=

51/35

powers

100

4^3

64

200

5^3

125

300

5^3-4^3

61

400

(11^2+12^2):5

53

500

10^10x10^2=

4096

fractions

100

3/5x5/3=

1

200

5/11:5/13

3

300

(36/11:6/33)^2

324

400

(50/14:5/7)x6/7

30/7

500

(81/49:9/7)^2 x 7/8

81/56

area and perimeter

100

square's side  is 4cm long, count the area and perimeter of the square 

area= 16cm^2

perimeter=16cm^2

200

rectangle's side is 5 cm long and other 1,5 times longer count the area and perimeter

area= 25,25cm^2 

perimeter= 21,5cm^2

300

side1=5

side2=7

side1:2+side2=side3

count the area and perimeter of triangle

area=17,5

perimeter= 21,5

400

count the area of the triangle that is 15mm high and it's base is 1,1 times longer 

123,5mm^2

500

count the area of trapez

b1= √169

b2= √64

h= 3^√125

52,5 cm^2

algebraic expressions

100

5+3=x+4

x= ?

x=4