Math REVIEW 20-21

Perimeter

100

Shape rectangle 

l = 5 cm h=10 cm

P =30 cm

200

Equilateral triangle 

each side measure 10 mm

P = 30 mm

300

Square each side measures 15 in.

P = 60 cm

400

Pentagon which each side measures 10 cm

P = 50 cm

500

Hexagon which each side measure 13 cm

78 cm

Area

100

Square l= 5 in

25 in²

200

square l =9 in

81 in²

300

rectangle l= 12 in w= 2 in

24 in²

400

rectangle l= 56 cm w= 4 cm

224 cm²

500

rectangle  l = 25 km w= 8 km

200 km²

Volume

100

cube 3 in

27 in²

200

rectangular prism l= 4 km w= 3km h= 6 km

72 km²

300

cube 5 in

125 in²

400

cube 7 km

343 km²

500

rectangular prism, l=8 in w= 9 in h= 2 in

144 in²

Mental Math

100

(89 - 80) x 9 =

81

200

56 x 3 

168

300

(800 / 40) x 4 

160

400

(1,500 / 5) - 100

200

500

(300 - 299) x 234

234

Polygons

100

This figure has 3 equal sides

triangle

200

This figure has 4 equal sides

 square

300

This figure has 5 equal sides

pentagon

400

This figure has 6 equal sides

hexagon

500

This figure has 7 equal sides

heptagon