Basic Operations
Lily has 7 apples. She gets 5 more. How many apples does she have now?
12
Which fraction is larger:
½ or ¼?
½
Count by fives:
5, 10, 15, ____, ____
20, 25
How many sides does a triangle have?
3
What tool do mathematicians often use to measure angles?
A protractor
What is 36 ÷ 6
6
⅓ + ⅓
⅔
How many even numbers are between 10 and 20 (not including 10 and 20)?
4
A rectangle is 7 cm long and 3 cm wide. What is its perimeter?
20 cm
Which symbol means "less than or equal to"?
≤
48 + 32 ÷ 8 × 5
A recipe uses ¾ cup of sugar. If you make half the recipe, how much sugar do you need?
⅜ cup
How many different two-digit numbers can you make using the digits 2, 5, and 8 without repeating digits?
6 numbers
What is the area of a rectangle that is 12 cm long and 8 cm wide?
96 cm²
The word "geometry" comes from Greek words meaning "to measure" what?
The Earth (or land)
A movie starts at 2:35 PM and lasts 2 hours 48 minutes. What time does it end?
5:23 PM
The ratio of red marbles to blue marbles is 3:5. If there are 40 marbles total, how many are blue?
25
There are 6 students. Every student shakes hands with every other student exactly once. How many handshakes happen?
15
A right triangle has legs measuring 6 cm and 8 cm. What is the length of the hypotenuse?
10 cm
Which ancient civilization is famous for developing a number system that included the concept of zero independently of Europe?
The Maya
Find the value of x:
3(5x − 2) = 54
x = 4
A store gives a 20% discount on a $75 jacket. What is the sale price?
$60
How many different 3-letter arrangements can be made from the letters A, B, C, and D if no letter can be repeated?
24
The circumference of a circle is 20pi. What is its radius?
r = 10
This Greek mathematician is often called the "Father of Geometry" because of his famous book Elements. Who is he?
Euclid