Area of parallelograms
Area of other shapes
Decimal Addition and Subtraction
Greatest common factor / least common multiple
Multi-digit multiplication
100
The area of this rectangle:
What is 28 square centimeters?
100
45 square feet
100
1.6 + 3.4
What is 5?
100
The greatest common factor of 12 and 16?
What is 4?
100
What is 14 x 5?
70
200
The area of a square, if each side is 6 inches long.
What is 36 square inches?
200
How to find the area of a triangle.
What is, "Multiply the base by the height and divide by 2" or... A = 1/2 (b × h)
200
23.31 + 19.04
What is 42.35
200
The greatest common factor of 15 and 20.
What is 5?
200
What is 23 x 6?
138
300
How to find the area of a rectangle
What is "multiply the base by the height"? or... A = (b × h)
300
What is the area of this triangle?
24 square units
300
5.38 - 2.2
What is 3.18?
300
The greatest common factor of 14 and 63
What is 7?
300
What is 35 x 9?
324
400
The area of this parallelogram:
What is 40 square units?
400
The area of this polygon:
What is 39 square units?
(Add the area of the rectangle and the area of the triangle)
400
163.807 + 27.9
What is 191.707?
400
The greatest common factor of 18, 36, and 42
What is 6?
400
What is 78 x 8?
624
500
46 square units
Area of small parallelogram:
bh =5 x 2 = 10
Area of large parallelogram: bh= 9 x 4 = 36
Total area: 10 + 36 = 46
500
The area of this shape:
What is 21 square units?
(The easiest solution is to find the area of the square, and then subtract the area of the missing triangle.)
500
Jenny has $19.63. If she buys a soda for $3.95, how much money will she have left?
She will have $15.68 left.
500
Luis is packing snacks for his students. He has 16 cookies and 20 carrot sticks. He wants to make sure each student has the same number of snacks. How many snacks can he pack up, keeping the numbers equal?
The greatest number of snacks Luis can pack up is 4.
500
What is 33 x 14?
462
600
The area of this trapezoid.
What is 28?
(Divide the trapezoid into a rectangle and two triangles.)
600
42.8 - 16.56
What is 26.24?