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?