Squares, Cubes, Square Roots and Cube Roots
Significant Figures and Scientific Notation
Length
Weight
Volume
100

What is the square of 59?

3, 481

100

12, 340 rounded off to the nearest ones

How many significant figures does the given number have?

4 significant figures

100

Convert 45.9 km to m.

45, 900m

100

Convert 45 kg 500g into gram

45, 500 g

100

What is the basic unit of volume in metric system?

Liter

200

What is the square root of 729?

27

200

Round off 92.810576 (correct to 3 s.f.)

92.8

200

Convert 4.5 mi. into ft.

23, 760 ft

200

Convert 10.8 lb into oz.

172.8 oz

200

Convert 13.9 hl to cl

13, 900 cl

300

Find the smallest number by which 243 should be multiplied to get a perfect square.

3

300

How many significant figures will be in the final answer of 2.5 x 3.42?

2 s.f.

300

Tim rides his bicycle 1, 845 m everyday. How many kilometers does he cover in a week?

12.92 km

300

Convert 14 T to pounds.

28, 000 lbs

300

Convert 2.25 gal to pt

18 pt

400

What is the cube of (-15)

-3,375

400

What is the decimal notation for the given scientific notation?


8.763 x 108

876, 300, 000

400

A plank of wood is 2.5 inches thick. If 12 planks are stacked one on top of the other, what is the height of the stack in feet?

2.5 ft

400

A candy store puts 250 g of candy in each box. How many boxes does the store need to fill, if it has 2 1/4 kg of candy?

9 boxes

400

Convert 20 pt. to fl. oz.

320 fl.oz

500

Simplify the square root of 525.

5 sq. rt. of 21

500

Solve and write the answer in scientific notation.

(2.4 x 102) + 3, 000

3.24 x 103

500

Jessica has one ribbon that is 5 feet long and another ribbon that is 50 inches long. Which ribbon is longer and by how much? Write the answer in feet.

The 5 ft long ribbon is longer by 0.83 ft.
500

If a carton of books weighs 2, 500 lb, what is its weight in metric tonnes?

1.13 t

500

Convert 260 fl. oz to c

45 c