3rd Grade Math Flashcards
(49 cards)
What is the sum of 15 and 27?
42
True or False: A triangle can have two right angles.
False
Fill in the blank: The product of 8 and 7 is ____.
56
What is the value of x in the equation 3x + 5 = 20?
5
What is the next number in the sequence: 2, 4, 6, 8, ____?
10
Which is greater: 1/2 or 1/3?
1/2
What is 45 divided by 9?
5
True or False: A square is a type of rectangle.
True
What is the area of a rectangle with a length of 10 and a width of 5?
50
If a pizza is cut into 8 equal slices and you eat 3 slices, what fraction of the pizza is left?
5/8
What is the least common multiple (LCM) of 4 and 6?
12
Fill in the blank: The perimeter of a square with side length 4 is ____.
16
What is 100 minus 37?
63
True or False: An obtuse angle is greater than 90 degrees.
True
What is the value of 12 cubed?
1728
Which is a prime number: 21, 23, or 25?
23
What is the value of 7 + 6 × 2?
19
Fill in the blank: The smallest two-digit number is ____.
10
What is the result of 9 × 8?
72
True or False: A hexagon has six sides.
True
What is the decimal equivalent of 1/4?
0.25
What is the difference between 75 and 29?
46
Fill in the blank: The sum of angles in a triangle is ____ degrees.
180
What is the next prime number after 11?
13