Decimals
Add: 1.23 + 4.567
5.797
What is 10% of 50?
5
Which is larger: 2/3 or 3/4?
3/4
What is the perimeter of a square with side length 4 cm?
16 cm
What is the largest ocean on Earth?
(Answer: What is the Pacific Ocean?)
Subtract: 15.784 − 3.129
12.655
What is 25% of 80?
20
True or False: 4/8 is the same as 1/2.
True
What is the area of a rectangle with a length of 15 m and a width of 13 m?
195 cm2
What is the name of the smallest bone in the human body?
a) Femur
b) Stapes
c) Tibia
(Answer: What is b?)
Add: 0.98 + 1.5643 + 89.784
92.3283
A jacket costs $75 and has a 35% discount. What is the new price?
$48.75
Convert 1 2/5 to an improper fraction.
7/5
A rectangular prism has a length of 18 cm, a width of 13 cm, and a height of 12 cm. What is its volume?
2808 cm3
What country has the most pyramids in the world?
a) Egypt
b) Sudan
c) Mexico
(Answer: What is b?)
Sudan has the most pyramids in the world, with between 200 and 255 known pyramids.
Multiply: 7.543 × 0.04
0.30172
A school has 600 students. If 45% are boys, how many girls are there?
330
Add: 5/6 + 2/24
11/12
What is the capacity of a cube with side length 17 m?
4913 L
Which gas is most abundant in the Earth’s atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
(Answer: What is b?)
Convert 0.375 into a fraction in its simplest form.
3/8
A number increased by 25% becomes 500. What was the original number?
400
A tank is 3/4 full of water. After using 1/3 of the water in the tank, what fraction of the tank is still full
1/2
A rectangular prism has a volume of 240 cm³. If its length is 10 cm and its width is 8 cm, what is its height?
3 cm
How many legs does a lobster have?
a) 6
b) 8
c) 10
(Answer: What is c?)