If Sarah has 5 apples and gives 2 to her friend, how many apples does Sarah have left?
3 apples
How many sides does a triangle have?
3 Sides
In the number 347, what digit is in the tens place?
Four
What does the "+" symbol mean?
Add or Plus
What tool do we use to count with beads that can slide?
Abacus
There are 3 baskets, and each basket has 4 oranges. How many oranges are there in total?
12 oranges
What is the name of a shape that has four equal sides?
A Square
What is 100 more than 852?
952
What symbol tells you to find the difference between two numbers?
The Minus or Subtraction symbol "-"
Which number system, still used today for things like clock faces and some book chapters, was developed by the Romans?
Roman Numerals
A baker made 24 cookies. He wants to put them into bags with 6 cookies in each bag. How many bags will he need?
4 bags
What is a straight path of points that goes on forever in two directions called?
A Line
What is the value of the 6 in the number 5,678?
600
What do the symbols " < " and " > " mean?
Less than and greater than
I can be a number less than 100. I am a multiple of 7. If you reverse my digits, you get another multiple of 7. What number(s) could I be?
70 or 77
A rectangular garden is 10 feet long and 5 feet wide. How many feet of fencing will you need if you want to put a fence around it?
30 feet
(Perimeter = 2 * (length + width) = 2 * (10 + 5) = 2 * 15 = 30
What is the difference between a ray and a line segment?
A ray has one endpoint and goes on forever in one direction, while a line segment has two endpoints and a specific length.
Round the number 7,852 to the nearest hundred
7,900
What is the mathematical operation represented by the symbol " ÷ "?
Division
The concept of zero as a number and a placeholder was a significant development. Which ancient civilization is credited with first using zero in a way that we understand it today
The Hindu civilization in India
Maria saved $15.50 in January and $22.75 in February. She then spent $10.25 on a book. How much money does Maria have left?
$28.00
(15.50 + 22.75 - 10.25 = 38.25 - 10.25 = 28.00)
A cube has how many faces, edges, and vertices?
6 faces, 12 edges, and 8 vertices
What is the difference between the value of the 7 in 7,235 and the value of the 7 in 1,789?
6,300
(7,000 - 700 = 6,300)
What does the symbol " ≠ " mean in a math problem?
Not equal to
A famous mathematician from ancient Greece developed many important ideas in geometry, including a theorem about right-angled triangles (a2+b2=c2). What was his name?
Pythagoras